136197637 has 6 divisors (see below), whose sum is σ = 136709522. Its totient is φ = 135687552.

The previous prime is 136197619. The next prime is 136197661. The reversal of 136197637 is 736791631.

It can be written as a sum of positive squares in 3 ways, for example, as 47348161 + 88849476 = 6881^2 + 9426^2 .

It is not a de Polignac number, because 136197637 - 2¹⁵ = 136164869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136197593 and 136197602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136197617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124063 + ... + 125155.

Almost surely, 2^136197637 is an apocalyptic number.

It is an amenable number.

136197637 is a deficient number, since it is larger than the sum of its proper divisors (511885).

136197637 is an frugal number, since it uses more digits than its factorization.

136197637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799 (or 1446 counting only the distinct ones).

The product of its digits is 142884, while the sum is 43.

The square root of 136197637 is about 11670.3743299005. The cubic root of 136197637 is about 514.5053055892.

The spelling of 136197637 in words is "one hundred thirty-six million, one hundred ninety-seven thousand, six hundred thirty-seven".