222136957 has 4 divisors (see below), whose sum is σ = 253870816. Its totient is φ = 190403100.

The previous prime is 222136933. The next prime is 222136973. The reversal of 222136957 is 759631222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222136957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222136927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15866919 + ... + 15866932.

It is an arithmetic number, because the mean of its divisors is an integer number (63467704).

Almost surely, 2^222136957 is an apocalyptic number.

It is an amenable number.

222136957 is a deficient number, since it is larger than the sum of its proper divisors (31733859).

222136957 is an equidigital number, since it uses as much as digits as its factorization.

222136957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31733858.

The product of its digits is 45360, while the sum is 37.

The square root of 222136957 is about 14904.2596931213. The cubic root of 222136957 is about 605.6293857716.

The spelling of 222136957 in words is "two hundred twenty-two million, one hundred thirty-six thousand, nine hundred fifty-seven".