157222 has 8 divisors (see below), whose sum is σ = 254016. Its totient is φ = 72552.

The previous prime is 157219. The next prime is 157229. The reversal of 157222 is 222751.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 157222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2998 + ... + 3049.

It is an arithmetic number, because the mean of its divisors is an integer number (31752).

2¹⁵⁷²²² is an apocalyptic number.

157222 is a deficient number, since it is larger than the sum of its proper divisors (96794).

157222 is a wasteful number, since it uses less digits than its factorization.

157222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6062.

The product of its digits is 280, while the sum is 19.

The square root of 157222 is about 396.5122948913. The cubic root of 157222 is about 53.9723223503.

Adding to 157222 its reverse (222751), we get a palindrome (379973).

The spelling of 157222 in words is "one hundred fifty-seven thousand, two hundred twenty-two".