140262531552 has 864 divisors, whose sum is σ = 506003936256. Its totient is φ = 37847347200.

The previous prime is 140262531449. The next prime is 140262531571. The reversal of 140262531552 is 255135262041.

140262531552 is a `hidden beast` number, since 1 + 40 + 2 + 62 + 5 + 3 + 1 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 448122948 + ... + 448123260.

It is an arithmetic number, because the mean of its divisors is an integer number (585652704).

Almost surely, 2^140262531552 is an apocalyptic number.

140262531552 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 140262531552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253001968128).

140262531552 is an abundant number, since it is smaller than the sum of its proper divisors (365741404704).

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

140262531552 is a wasteful number, since it uses less digits than its factorization.

140262531552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 140262531552 its reverse (255135262041), we get a palindrome (395397793593).

The spelling of 140262531552 in words is "one hundred forty billion, two hundred sixty-two million, five hundred thirty-one thousand, five hundred fifty-two".