140657542 has 8 divisors (see below), whose sum is σ = 211115736. Its totient is φ = 70285632.

The previous prime is 140657537. The next prime is 140657591. The reversal of 140657542 is 245756041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 140657498 and 140657507.

It is a congruent number.

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, 17328 + ... + 24115.

It is an arithmetic number, because the mean of its divisors is an integer number (26389467).

Almost surely, 2^140657542 is an apocalyptic number.

140657542 is a deficient number, since it is larger than the sum of its proper divisors (70458194).

140657542 is a wasteful number, since it uses less digits than its factorization.

140657542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43142.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 140657542 is about 11859.9132374567. The cubic root of 140657542 is about 520.0610653138.

The spelling of 140657542 in words is "one hundred forty million, six hundred fifty-seven thousand, five hundred forty-two".