1139136138 has 48 divisors (see below), whose sum is σ = 2827581120. Its totient is φ = 324675648.

The previous prime is 1139136121. The next prime is 1139136139. The reversal of 1139136138 is 8316319311.

1139136138 is a `hidden beast` number, since 1 + 1 + 39 + 1 + 3 + 613 + 8 = 666.

It is a super-2 number, since 2×1139136138² = 2595262281795110088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1139136139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42006 + ... + 63582.

It is an arithmetic number, because the mean of its divisors is an integer number (58907940).

Almost surely, 2^1139136138 is an apocalyptic number.

1139136138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1139136138 is an abundant number, since it is smaller than the sum of its proper divisors (1688444982).

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

1139136138 is a wasteful number, since it uses less digits than its factorization.

1139136138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22011 (or 22008 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 1139136138 is about 33751.0909157023. The cubic root of 1139136138 is about 1044.3799922512.

The spelling of 1139136138 in words is "one billion, one hundred thirty-nine million, one hundred thirty-six thousand, one hundred thirty-eight".