111164291 has 6 divisors (see below), whose sum is σ = 129313620. Its totient is φ = 95283636.

The previous prime is 111164257. The next prime is 111164303. The reversal of 111164291 is 192461111.

It is not a de Polignac number, because 111164291 - 2¹⁸ = 110902147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111164291.

It is not an unprimeable number, because it can be changed into a prime (111164891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1134281 + ... + 1134378.

It is an arithmetic number, because the mean of its divisors is an integer number (21552270).

Almost surely, 2^111164291 is an apocalyptic number.

111164291 is a deficient number, since it is larger than the sum of its proper divisors (18149329).

111164291 is an equidigital number, since it uses as much as digits as its factorization.

111164291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268673 (or 2268666 counting only the distinct ones).

The product of its digits is 432, while the sum is 26.

The square root of 111164291 is about 10543.4477757515. The cubic root of 111164291 is about 480.8265432078.

The spelling of 111164291 in words is "one hundred eleven million, one hundred sixty-four thousand, two hundred ninety-one".