140874931 has 4 divisors (see below), whose sum is σ = 146999952. Its totient is φ = 134749912.

The previous prime is 140874919. The next prime is 140874941. The reversal of 140874931 is 139478041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 139478041 = 89 ⋅1567169.

It is a cyclic number.

It is not a de Polignac number, because 140874931 - 2¹⁹ = 140350643 is a prime.

It is a super-2 number, since 2×140874931² = 39691492368509522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140874941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3062476 + ... + 3062521.

It is an arithmetic number, because the mean of its divisors is an integer number (36749988).

Almost surely, 2^140874931 is an apocalyptic number.

140874931 is a deficient number, since it is larger than the sum of its proper divisors (6125021).

140874931 is an equidigital number, since it uses as much as digits as its factorization.

140874931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125020.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 140874931 is about 11869.0745637560. The cubic root of 140874931 is about 520.3288489442.

The spelling of 140874931 in words is "one hundred forty million, eight hundred seventy-four thousand, nine hundred thirty-one".