157484217 has 16 divisors (see below), whose sum is σ = 241125120. Its totient is φ = 90421200.

The previous prime is 157484207. The next prime is 157484221. The reversal of 157484217 is 712484751.

It is not a de Polignac number, because 157484217 - 2⁶ = 157484153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157484207) 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, 124959 + ... + 126212.

It is an arithmetic number, because the mean of its divisors is an integer number (15070320).

Almost surely, 2^157484217 is an apocalyptic number.

It is an amenable number.

157484217 is a deficient number, since it is larger than the sum of its proper divisors (83640903).

157484217 is a wasteful number, since it uses less digits than its factorization.

157484217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251204.

The product of its digits is 62720, while the sum is 39.

The square root of 157484217 is about 12549.2715724858. The cubic root of 157484217 is about 540.0231094363.

The spelling of 157484217 in words is "one hundred fifty-seven million, four hundred eighty-four thousand, two hundred seventeen".