140924731 has 4 divisors (see below), whose sum is σ = 141712200. Its totient is φ = 140137264.

The previous prime is 140924723. The next prime is 140924737. The reversal of 140924731 is 137429041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140924731 - 2³ = 140924723 is a prime.

It is a super-2 number, since 2×140924731² = 39719559614844722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140924693 and 140924702.

It is not an unprimeable number, because it can be changed into a prime (140924737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393466 + ... + 393823.

It is an arithmetic number, because the mean of its divisors is an integer number (35428050).

Almost surely, 2^140924731 is an apocalyptic number.

140924731 is a deficient number, since it is larger than the sum of its proper divisors (787469).

140924731 is an equidigital number, since it uses as much as digits as its factorization.

140924731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787468.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 140924731 is about 11871.1722673037. The cubic root of 140924731 is about 520.3901546799.

The spelling of 140924731 in words is "one hundred forty million, nine hundred twenty-four thousand, seven hundred thirty-one".