140492457 has 48 divisors (see below), whose sum is σ = 240364800. Its totient is φ = 79027200.

The previous prime is 140492449. The next prime is 140492459. The reversal of 140492457 is 754294041.

It is a happy number.

140492457 is a `hidden beast` number, since 1 + 404 + 9 + 245 + 7 = 666.

It is not a de Polignac number, because 140492457 - 2³ = 140492449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140492459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218857 + ... + 219497.

It is an arithmetic number, because the mean of its divisors is an integer number (5007600).

Almost surely, 2^140492457 is an apocalyptic number.

It is an amenable number.

140492457 is a deficient number, since it is larger than the sum of its proper divisors (99872343).

140492457 is an equidigital number, since it uses as much as digits as its factorization.

140492457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 140492457 is about 11852.9514046081. The cubic root of 140492457 is about 519.8575263028.

The spelling of 140492457 in words is "one hundred forty million, four hundred ninety-two thousand, four hundred fifty-seven".