157630210 has 8 divisors (see below), whose sum is σ = 283734396. Its totient is φ = 63052080.

The previous prime is 157630189. The next prime is 157630211. The reversal of 157630210 is 12036751.

It can be written as a sum of positive squares in 2 ways, for example, as 135001161 + 22629049 = 11619^2 + 4757^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (157630211) 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 3 ways as a sum of consecutive naturals, for example, 7881501 + ... + 7881520.

Almost surely, 2^157630210 is an apocalyptic number.

157630210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157630210 is a deficient number, since it is larger than the sum of its proper divisors (126104186).

157630210 is a wasteful number, since it uses less digits than its factorization.

157630210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15763028.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 157630210 is about 12555.0870168231. The cubic root of 157630210 is about 540.1899309027.

Adding to 157630210 its reverse (12036751), we get a palindrome (169666961).

The spelling of 157630210 in words is "one hundred fifty-seven million, six hundred thirty thousand, two hundred ten".