157073817 has 16 divisors (see below), whose sum is σ = 221175360. Its totient is φ = 98880192.

The previous prime is 157073803. The next prime is 157073827. The reversal of 157073817 is 718370751.

It is not a de Polignac number, because 157073817 - 2⁷ = 157073689 is a prime.

It is a super-4 number, since 4×157073817⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (157073827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13723 + ... + 22415.

It is an arithmetic number, because the mean of its divisors is an integer number (13823460).

Almost surely, 2^157073817 is an apocalyptic number.

It is an amenable number.

157073817 is a deficient number, since it is larger than the sum of its proper divisors (64101543).

157073817 is a wasteful number, since it uses less digits than its factorization.

157073817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9032.

The product of its (nonzero) digits is 41160, while the sum is 39.

The square root of 157073817 is about 12532.9093589637. The cubic root of 157073817 is about 539.5536057099.

The spelling of 157073817 in words is "one hundred fifty-seven million, seventy-three thousand, eight hundred seventeen".