630157 has 4 divisors (see below), whose sum is σ = 687456. Its totient is φ = 572860.

The previous prime is 630151. The next prime is 630163. The reversal of 630157 is 751036.

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 an interprime number because it is at equal distance from previous prime (630151) and next prime (630163).

It is a cyclic number.

It is not a de Polignac number, because 630157 - 2⁷ = 630029 is a prime.

630157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28633 + ... + 28654.

It is an arithmetic number, because the mean of its divisors is an integer number (171864).

2⁶³⁰¹⁵⁷ is an apocalyptic number.

It is an amenable number.

630157 is a deficient number, since it is larger than the sum of its proper divisors (57299).

630157 is a wasteful number, since it uses less digits than its factorization.

630157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57298.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 630157 is about 793.8242878622. The cubic root of 630157 is about 85.7333094019.

It can be divided in two parts, 630 and 157, that added together give a palindrome (787).

The spelling of 630157 in words is "six hundred thirty thousand, one hundred fifty-seven".