157222345 has 16 divisors (see below), whose sum is σ = 215877888. Its totient is φ = 107680320.

The previous prime is 157222343. The next prime is 157222367. The reversal of 157222345 is 543222751.

157222345 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 157222345 - 2¹ = 157222343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157222343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33907 + ... + 38263.

It is an arithmetic number, because the mean of its divisors is an integer number (13492368).

Almost surely, 2^157222345 is an apocalyptic number.

It is an amenable number.

157222345 is a deficient number, since it is larger than the sum of its proper divisors (58655543).

157222345 is a wasteful number, since it uses less digits than its factorization.

157222345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5400.

The product of its digits is 16800, while the sum is 31.

The square root of 157222345 is about 12538.8334784381. The cubic root of 157222345 is about 539.7236182835.

The spelling of 157222345 in words is "one hundred fifty-seven million, two hundred twenty-two thousand, three hundred forty-five".