1238162156 has 48 divisors (see below), whose sum is σ = 2860365312. Its totient is φ = 454022400.

The previous prime is 1238162147. The next prime is 1238162161. The reversal of 1238162156 is 6512618321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113000 + ... + 123471.

It is an arithmetic number, because the mean of its divisors is an integer number (59590944).

Almost surely, 2^1238162156 is an apocalyptic number.

It is an amenable number.

1238162156 is an abundant number, since it is smaller than the sum of its proper divisors (1622203156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1238162156 is a wasteful number, since it uses less digits than its factorization.

1238162156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236510 (or 236508 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 1238162156 is about 35187.5284156191. The cubic root of 1238162156 is about 1073.8060386728.

The spelling of 1238162156 in words is "one billion, two hundred thirty-eight million, one hundred sixty-two thousand, one hundred fifty-six".