2136913497 has 6 divisors (see below), whose sum is σ = 3086652842. Its totient is φ = 1424608992.

The previous prime is 2136913487. The next prime is 2136913543. The reversal of 2136913497 is 7943196312.

2136913497 is a `hidden beast` number, since 213 + 6 + 91 + 349 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1868314176 + 268599321 = 43224^2 + 16389^2 .

It is not a de Polignac number, because 2136913497 - 2⁶ = 2136913433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2136913487) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118717408 + ... + 118717425.

Almost surely, 2^2136913497 is an apocalyptic number.

It is an amenable number.

2136913497 is a deficient number, since it is larger than the sum of its proper divisors (949739345).

2136913497 is a wasteful number, since it uses less digits than its factorization.

2136913497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237434839 (or 237434836 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 2136913497 is about 46226.7616970949. The cubic root of 2136913497 is about 1288.0389040964.

The spelling of 2136913497 in words is "two billion, one hundred thirty-six million, nine hundred thirteen thousand, four hundred ninety-seven".