2140431597 has 24 divisors (see below), whose sum is σ = 3349741824. Its totient is φ = 1311778944.

The previous prime is 2140431581. The next prime is 2140431599. The reversal of 2140431597 is 7951340412.

2140431597 is a `hidden beast` number, since 21 + 4 + 0 + 43 + 1 + 597 = 666.

It is not a de Polignac number, because 2140431597 - 2⁴ = 2140431581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140431599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156093 + ... + 169250.

It is an arithmetic number, because the mean of its divisors is an integer number (139572576).

Almost surely, 2^2140431597 is an apocalyptic number.

It is an amenable number.

2140431597 is a deficient number, since it is larger than the sum of its proper divisors (1209310227).

2140431597 is a wasteful number, since it uses less digits than its factorization.

2140431597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325409 (or 325406 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 2140431597 is about 46264.7986810707. The cubic root of 2140431597 is about 1288.7453693117.

The spelling of 2140431597 in words is "two billion, one hundred forty million, four hundred thirty-one thousand, five hundred ninety-seven".