157027217 has 4 divisors (see below), whose sum is σ = 157355520. Its totient is φ = 156698916.

The previous prime is 157027177. The next prime is 157027219. The reversal of 157027217 is 712720751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157027217 - 2¹⁰ = 157026193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157027219) 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, 163433 + ... + 164390.

It is an arithmetic number, because the mean of its divisors is an integer number (39338880).

Almost surely, 2^157027217 is an apocalyptic number.

It is an amenable number.

157027217 is a deficient number, since it is larger than the sum of its proper divisors (328303).

157027217 is an equidigital number, since it uses as much as digits as its factorization.

157027217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328302.

The product of its (nonzero) digits is 6860, while the sum is 32.

The square root of 157027217 is about 12531.0501156128. The cubic root of 157027217 is about 539.5002429336.

Adding to 157027217 its reverse (712720751), we get a palindrome (869747968).

The spelling of 157027217 in words is "one hundred fifty-seven million, twenty-seven thousand, two hundred seventeen".