1234156136 has 16 divisors (see below), whose sum is σ = 2320678500. Its totient is φ = 615308544.

The previous prime is 1234156117. The next prime is 1234156163. The reversal of 1234156136 is 6316514321.

It can be written as a sum of positive squares in 2 ways, for example, as 1217591236 + 16564900 = 34894^2 + 4070^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218225 + ... + 223808.

Almost surely, 2^1234156136 is an apocalyptic number.

It is an amenable number.

1234156136 is a deficient number, since it is larger than the sum of its proper divisors (1086522364).

1234156136 is a wasteful number, since it uses less digits than its factorization.

1234156136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442388 (or 442384 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 1234156136 is about 35130.5584356412. The cubic root of 1234156136 is about 1072.6467031442.

The spelling of 1234156136 in words is "one billion, two hundred thirty-four million, one hundred fifty-six thousand, one hundred thirty-six".