1139238225 has 36 divisors (see below), whose sum is σ = 2056131792. Its totient is φ = 602940000.

The previous prime is 1139238211. The next prime is 1139238229. The reversal of 1139238225 is 5228329311.

1139238225 is a `hidden beast` number, since 11 + 392 + 38 + 225 = 666.

It is not a de Polignac number, because 1139238225 - 2¹³ = 1139230033 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 1139238225.

It is not an unprimeable number, because it can be changed into a prime (1139238229) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10150 + ... + 48800.

It is an arithmetic number, because the mean of its divisors is an integer number (57114772).

Almost surely, 2^1139238225 is an apocalyptic number.

1139238225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1139238225 is a deficient number, since it is larger than the sum of its proper divisors (916893567).

1139238225 is a wasteful number, since it uses less digits than its factorization.

1139238225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38798 (or 38790 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 1139238225 is about 33752.6032329360. The cubic root of 1139238225 is about 1044.4111897033.

The spelling of 1139238225 in words is "one billion, one hundred thirty-nine million, two hundred thirty-eight thousand, two hundred twenty-five".