1138465125 has 80 divisors (see below), whose sum is σ = 2425792512. Its totient is φ = 520408800.

The previous prime is 1138465091. The next prime is 1138465189. The reversal of 1138465125 is 5215648311.

1138465125 is a `hidden beast` number, since 1 + 138 + 4 + 6 + 512 + 5 = 666.

It is not a de Polignac number, because 1138465125 - 2⁸ = 1138464869 is a prime.

It is a super-2 number, since 2×1138465125² = 2592205681682531250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1138465125.

It is a congruent number.

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 79 ways as a sum of consecutive naturals, for example, 62844 + ... + 78906.

Almost surely, 2^1138465125 is an apocalyptic number.

1138465125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1138465125 is an abundant number, since it is smaller than the sum of its proper divisors (1287327387).

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

1138465125 is an equidigital number, since it uses as much as digits as its factorization.

1138465125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16097 (or 16078 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 1138465125 is about 33741.1488393623. The cubic root of 1138465125 is about 1044.1748864770.

The spelling of 1138465125 in words is "one billion, one hundred thirty-eight million, four hundred sixty-five thousand, one hundred twenty-five".