222751157 has 8 divisors (see below), whose sum is σ = 225260472. Its totient is φ = 220248000.

The previous prime is 222751147. The next prime is 222751171. The reversal of 222751157 is 751157222.

It can be written as a sum of positive squares in 4 ways, for example, as 51638596 + 171112561 = 7186^2 + 13081^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222751157 - 2²² = 218556853 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 (222751127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138683 + ... + 140279.

It is an arithmetic number, because the mean of its divisors is an integer number (28157559).

Almost surely, 2^222751157 is an apocalyptic number.

It is an amenable number.

222751157 is a deficient number, since it is larger than the sum of its proper divisors (2509315).

222751157 is a wasteful number, since it uses less digits than its factorization.

222751157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079.

The product of its digits is 9800, while the sum is 32.

The square root of 222751157 is about 14924.8503175074. The cubic root of 222751157 is about 606.1870526347.

It can be divided in two parts, 22275 and 1157, that added together give a palindrome (23432).

The spelling of 222751157 in words is "two hundred twenty-two million, seven hundred fifty-one thousand, one hundred fifty-seven".