111552125 has 16 divisors (see below), whose sum is σ = 144022320. Its totient is φ = 86161600.

The previous prime is 111552107. The next prime is 111552127. The reversal of 111552125 is 521255111.

It can be written as a sum of positive squares in 8 ways, for example, as 60543961 + 51008164 = 7781^2 + 7142^2 .

It is not a de Polignac number, because 111552125 - 2²⁴ = 94774909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111552125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111552127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11762 + ... + 19011.

It is an arithmetic number, because the mean of its divisors is an integer number (9001395).

Almost surely, 2^111552125 is an apocalyptic number.

It is an amenable number.

111552125 is a deficient number, since it is larger than the sum of its proper divisors (32470195).

111552125 is an equidigital number, since it uses as much as digits as its factorization.

111552125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30817 (or 30807 counting only the distinct ones).

The product of its digits is 500, while the sum is 23.

The square root of 111552125 is about 10561.8239428614. The cubic root of 111552125 is about 481.3850691882.

The spelling of 111552125 in words is "one hundred eleven million, five hundred fifty-two thousand, one hundred twenty-five".