1139425515 has 32 divisors (see below), whose sum is σ = 2095502400. Its totient is φ = 586736640.

The previous prime is 1139425489. The next prime is 1139425519. The reversal of 1139425515 is 5155249311.

It is a happy number.

1139425515 is a `hidden beast` number, since 1 + 1 + 394 + 255 + 15 = 666.

It is not a de Polignac number, because 1139425515 - 2⁷ = 1139425387 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1139425515.

It is not an unprimeable number, because it can be changed into a prime (1139425519) 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, 141606 + ... + 149435.

It is an arithmetic number, because the mean of its divisors is an integer number (65484450).

Almost surely, 2^1139425515 is an apocalyptic number.

1139425515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1139425515 is a deficient number, since it is larger than the sum of its proper divisors (956076885).

1139425515 is a wasteful number, since it uses less digits than its factorization.

1139425515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291084 (or 291078 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 1139425515 is about 33755.3775715811. The cubic root of 1139425515 is about 1044.4684200669.

The spelling of 1139425515 in words is "one billion, one hundred thirty-nine million, four hundred twenty-five thousand, five hundred fifteen".