157484417 has 4 divisors (see below), whose sum is σ = 157717716. Its totient is φ = 157251120.

The previous prime is 157484387. The next prime is 157484441. The reversal of 157484417 is 714484751.

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

It can be written as a sum of positive squares in 2 ways, for example, as 129595456 + 27888961 = 11384^2 + 5281^2 .

It is a cyclic number.

It is not a de Polignac number, because 157484417 - 2¹² = 157480321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157484477) 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, 115634 + ... + 116987.

It is an arithmetic number, because the mean of its divisors is an integer number (39429429).

Almost surely, 2^157484417 is an apocalyptic number.

It is an amenable number.

157484417 is a deficient number, since it is larger than the sum of its proper divisors (233299).

157484417 is an equidigital number, since it uses as much as digits as its factorization.

157484417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233298.

The product of its digits is 125440, while the sum is 41.

The square root of 157484417 is about 12549.2795410733. The cubic root of 157484417 is about 540.0233380403.

The spelling of 157484417 in words is "one hundred fifty-seven million, four hundred eighty-four thousand, four hundred seventeen".