157323117 has 16 divisors (see below), whose sum is σ = 253832832. Its totient is φ = 84610560.

The previous prime is 157323073. The next prime is 157323121. The reversal of 157323117 is 711323751.

157323117 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 157323117 - 2⁷ = 157322989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157323137) 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, 219984 + ... + 220697.

It is an arithmetic number, because the mean of its divisors is an integer number (15864552).

Almost surely, 2^157323117 is an apocalyptic number.

157323117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

157323117 is a deficient number, since it is larger than the sum of its proper divisors (96509715).

157323117 is a wasteful number, since it uses less digits than its factorization.

157323117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440708.

The product of its digits is 4410, while the sum is 30.

The square root of 157323117 is about 12542.8512308805. The cubic root of 157323117 is about 539.8389059935.

Adding to 157323117 its reverse (711323751), we get a palindrome (868646868).

The spelling of 157323117 in words is "one hundred fifty-seven million, three hundred twenty-three thousand, one hundred seventeen".