157117622 has 4 divisors (see below), whose sum is σ = 235676436. Its totient is φ = 78558810.

The previous prime is 157117619. The next prime is 157117643. The reversal of 157117622 is 226711751.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39279404 + ... + 39279407.

It is an arithmetic number, because the mean of its divisors is an integer number (58919109).

Almost surely, 2^157117622 is an apocalyptic number.

157117622 is a deficient number, since it is larger than the sum of its proper divisors (78558814).

157117622 is an equidigital number, since it uses as much as digits as its factorization.

157117622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78558813.

The product of its digits is 5880, while the sum is 32.

The square root of 157117622 is about 12534.6568361483. The cubic root of 157117622 is about 539.6037582419.

The spelling of 157117622 in words is "one hundred fifty-seven million, one hundred seventeen thousand, six hundred twenty-two".