140523552 has 96 divisors (see below), whose sum is σ = 441423360. Its totient is φ = 43234560.

The previous prime is 140523529. The next prime is 140523553. The reversal of 140523552 is 255325041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140523553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4977 + ... + 17487.

It is an arithmetic number, because the mean of its divisors is an integer number (4598160).

Almost surely, 2^140523552 is an apocalyptic number.

140523552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140523552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220711680).

140523552 is an abundant number, since it is smaller than the sum of its proper divisors (300899808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140523552 is a wasteful number, since it uses less digits than its factorization.

140523552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12543 (or 12529 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 140523552 is about 11854.2630306569. The cubic root of 140523552 is about 519.8958765879.

Adding to 140523552 its reverse (255325041), we get a palindrome (395848593).

The spelling of 140523552 in words is "one hundred forty million, five hundred twenty-three thousand, five hundred fifty-two".