157222607 has 4 divisors (see below), whose sum is σ = 162294336. Its totient is φ = 152150880.

The previous prime is 157222603. The next prime is 157222633. The reversal of 157222607 is 706222751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157222607 - 2² = 157222603 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 (157222603) 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, 2535818 + ... + 2535879.

It is an arithmetic number, because the mean of its divisors is an integer number (40573584).

Almost surely, 2^157222607 is an apocalyptic number.

157222607 is a deficient number, since it is larger than the sum of its proper divisors (5071729).

157222607 is an equidigital number, since it uses as much as digits as its factorization.

157222607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071728.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 157222607 is about 12538.8439259766. The cubic root of 157222607 is about 539.7239180872.

The spelling of 157222607 in words is "one hundred fifty-seven million, two hundred twenty-two thousand, six hundred seven".