111472515625 has 21 divisors (see below), whose sum is σ = 139391047803. Its totient is φ = 89144625000.

The previous prime is 111472515619. The next prime is 111472515643. The reversal of 111472515625 is 526515274111.

It is a happy number.

The square root of 111472515625 is 333875.

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

It can be written as a sum of positive squares in 3 ways, for example, as 97660625049 + 13811890576 = 312507^2 + 117524^2 .

It is not a de Polignac number, because 111472515625 - 2⁹ = 111472515113 is a prime.

It is a super-2 number, since 2×111472515625² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

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 20 ways as a sum of consecutive naturals, for example, 41733040 + ... + 41735710.

It is an arithmetic number, because the mean of its divisors is an integer number (6637668943).

Almost surely, 2^111472515625 is an apocalyptic number.

111472515625 is the 333875-th square number.

111472515625 is the 166938-th centered octagonal number.

It is an amenable number.

111472515625 is a deficient number, since it is larger than the sum of its proper divisors (27918532178).

111472515625 is an frugal number, since it uses more digits than its factorization.

111472515625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5372 (or 2676 counting only the distinct ones).

The product of its digits is 84000, while the sum is 40.

Adding to 111472515625 its reverse (526515274111), we get a palindrome (637987789736).

The spelling of 111472515625 in words is "one hundred eleven billion, four hundred seventy-two million, five hundred fifteen thousand, six hundred twenty-five".