111653542 has 64 divisors (see below), whose sum is σ = 230275584. Its totient is φ = 39191040.

The previous prime is 111653513. The next prime is 111653543. The reversal of 111653542 is 245356111.

It is a super-2 number, since 2×111653542² = 24933026882291528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111653542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111653543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85438 + ... + 86734.

It is an arithmetic number, because the mean of its divisors is an integer number (3598056).

Almost surely, 2^111653542 is an apocalyptic number.

111653542 is an abundant number, since it is smaller than the sum of its proper divisors (118622042).

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

111653542 is a wasteful number, since it uses less digits than its factorization.

111653542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373.

The product of its digits is 3600, while the sum is 28.

The square root of 111653542 is about 10566.6239641619. The cubic root of 111653542 is about 481.5309078623.

The spelling of 111653542 in words is "one hundred eleven million, six hundred fifty-three thousand, five hundred forty-two".