11139747025 has 81 divisors (see below), whose sum is σ = 16184601489. Its totient is φ = 7599240000.

The previous prime is 11139747019. The next prime is 11139747037. The reversal of 11139747025 is 52074793111.

It is a happy number.

The square root of 11139747025 is 105545.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2056894609 + 9082852416 = 45353^2 + 95304^2 .

It is not a de Polignac number, because 11139747025 - 2⁷ = 11139746897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 110294475 + ... + 110294575.

Almost surely, 2^11139747025 is an apocalyptic number.

11139747025 is the 105545-th square number.

11139747025 is the 52773-rd centered octagonal number.

It is an amenable number.

11139747025 is a deficient number, since it is larger than the sum of its proper divisors (5044854464).

11139747025 is a wasteful number, since it uses less digits than its factorization.

11139747025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 11139747025 in words is "eleven billion, one hundred thirty-nine million, seven hundred forty-seven thousand, twenty-five".