140457915 has 64 divisors (see below), whose sum is σ = 271111680. Its totient is φ = 68584320.

The previous prime is 140457887. The next prime is 140457943. The reversal of 140457915 is 519754041.

It is an interprime number because it is at equal distance from previous prime (140457887) and next prime (140457943).

It is not a de Polignac number, because 140457915 - 2⁶ = 140457851 is a prime.

It is a super-2 number, since 2×140457915² = 39456851772294450, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 140457915.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 285820 + ... + 286310.

It is an arithmetic number, because the mean of its divisors is an integer number (4236120).

Almost surely, 2^140457915 is an apocalyptic number.

140457915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140457915 is a deficient number, since it is larger than the sum of its proper divisors (130653765).

140457915 is a wasteful number, since it uses less digits than its factorization.

140457915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 140457915 is about 11851.4942095923. The cubic root of 140457915 is about 519.8149181066.

It can be divided in two parts, 1404 and 57915, that added together give a cube (59319 = 39³).

The spelling of 140457915 in words is "one hundred forty million, four hundred fifty-seven thousand, nine hundred fifteen".