111429725 has 12 divisors (see below), whose sum is σ = 150734400. Its totient is φ = 81039600.

The previous prime is 111429653. The next prime is 111429749. The reversal of 111429725 is 527924111.

It is a de Polignac number, because none of the positive numbers 2^k-111429725 is a prime.

It is a super-2 number, since 2×111429725² = 24833167227151250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111429691 and 111429700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202325 + ... + 202874.

It is an arithmetic number, because the mean of its divisors is an integer number (12561200).

Almost surely, 2^111429725 is an apocalyptic number.

It is an amenable number.

111429725 is a deficient number, since it is larger than the sum of its proper divisors (39304675).

111429725 is a wasteful number, since it uses less digits than its factorization.

111429725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405220 (or 405215 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 111429725 is about 10556.0278987884. The cubic root of 111429725 is about 481.2089389828.

The spelling of 111429725 in words is "one hundred eleven million, four hundred twenty-nine thousand, seven hundred twenty-five".