140657252 has 12 divisors (see below), whose sum is σ = 260629740. Its totient is φ = 66191616.

The previous prime is 140657249. The next prime is 140657267. The reversal of 140657252 is 252756041.

It can be written as a sum of positive squares in 2 ways, for example, as 91853056 + 48804196 = 9584^2 + 6986^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1034177 + ... + 1034312.

It is an arithmetic number, because the mean of its divisors is an integer number (21719145).

Almost surely, 2^140657252 is an apocalyptic number.

It is an amenable number.

140657252 is a deficient number, since it is larger than the sum of its proper divisors (119972488).

140657252 is a wasteful number, since it uses less digits than its factorization.

140657252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068510 (or 2068508 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 140657252 is about 11859.9010113913. The cubic root of 140657252 is about 520.0607079025.

The spelling of 140657252 in words is "one hundred forty million, six hundred fifty-seven thousand, two hundred fifty-two".