111164142 has 32 divisors (see below), whose sum is σ = 227208960. Its totient is φ = 36247680.

The previous prime is 111164107. The next prime is 111164147. The reversal of 111164142 is 241461111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111164147) 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, 84663 + ... + 85965.

It is an arithmetic number, because the mean of its divisors is an integer number (7100280).

Almost surely, 2^111164142 is an apocalyptic number.

111164142 is an abundant number, since it is smaller than the sum of its proper divisors (116044818).

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

111164142 is a wasteful number, since it uses less digits than its factorization.

111164142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608.

The product of its digits is 192, while the sum is 21.

The square root of 111164142 is about 10543.4407097494. The cubic root of 111164142 is about 480.8263283811.

The spelling of 111164142 in words is "one hundred eleven million, one hundred sixty-four thousand, one hundred forty-two".