157222505 has 16 divisors (see below), whose sum is σ = 208137600. Its totient is φ = 113055360.

The previous prime is 157222489. The next prime is 157222517. The reversal of 157222505 is 505222751.

157222505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157222505 - 2⁴ = 157222489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11165 + ... + 20954.

It is an arithmetic number, because the mean of its divisors is an integer number (13008600).

Almost surely, 2^157222505 is an apocalyptic number.

It is an amenable number.

157222505 is a deficient number, since it is larger than the sum of its proper divisors (50915095).

157222505 is a wasteful number, since it uses less digits than its factorization.

157222505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32224.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 157222505 is about 12538.8398586153. The cubic root of 157222505 is about 539.7238013698.

The spelling of 157222505 in words is "one hundred fifty-seven million, two hundred twenty-two thousand, five hundred five".