140742524 has 72 divisors (see below), whose sum is σ = 290899728. Its totient is φ = 59304960.

The previous prime is 140742521. The next prime is 140742527. The reversal of 140742524 is 425247041.

It is an interprime number because it is at equal distance from previous prime (140742521) and next prime (140742527).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140742521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 425039 + ... + 425369.

It is an arithmetic number, because the mean of its divisors is an integer number (4040274).

Almost surely, 2^140742524 is an apocalyptic number.

It is an amenable number.

140742524 is an abundant number, since it is smaller than the sum of its proper divisors (150157204).

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

140742524 is a wasteful number, since it uses less digits than its factorization.

140742524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 140742524 is about 11863.4954376861. The cubic root of 140742524 is about 520.1657804755.

Adding to 140742524 its reverse (425247041), we get a palindrome (565989565).

The spelling of 140742524 in words is "one hundred forty million, seven hundred forty-two thousand, five hundred twenty-four".