111520052 has 24 divisors (see below), whose sum is σ = 223266624. Its totient is φ = 47745792.

The previous prime is 111520037. The next prime is 111520061. The reversal of 111520052 is 250025111.

It is a self number, because there is not a number n which added to its sum of digits gives 111520052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46343 + ... + 48689.

It is an arithmetic number, because the mean of its divisors is an integer number (9302776).

Almost surely, 2^111520052 is an apocalyptic number.

It is an amenable number.

111520052 is an abundant number, since it is smaller than the sum of its proper divisors (111746572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111520052 is a wasteful number, since it uses less digits than its factorization.

111520052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055 (or 4053 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 111520052 is about 10560.3054880055. The cubic root of 111520052 is about 481.3389294926.

Adding to 111520052 its reverse (250025111), we get a palindrome (361545163).

The spelling of 111520052 in words is "one hundred eleven million, five hundred twenty thousand, fifty-two".