1015089138 has 64 divisors (see below), whose sum is σ = 2581152000. Its totient is φ = 289671552.

The previous prime is 1015089137. The next prime is 1015089149. The reversal of 1015089138 is 8319805101.

1015089138 is a `hidden beast` number, since 10 + 1 + 508 + 9 + 138 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1015089133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 607368 + ... + 609036.

It is an arithmetic number, because the mean of its divisors is an integer number (40330500).

Almost surely, 2^1015089138 is an apocalyptic number.

1015089138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1015089138 is an abundant number, since it is smaller than the sum of its proper divisors (1566062862).

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

1015089138 is a wasteful number, since it uses less digits than its factorization.

1015089138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296 (or 3290 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 1015089138 is about 31860.4635559497. The cubic root of 1015089138 is about 1005.0046246167.

The spelling of 1015089138 in words is "one billion, fifteen million, eighty-nine thousand, one hundred thirty-eight".