630676131 has 4 divisors (see below), whose sum is σ = 840901512. Its totient is φ = 420450752.

The previous prime is 630676091. The next prime is 630676147. The reversal of 630676131 is 131676036.

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

It is a cyclic number.

It is not a de Polignac number, because 630676131 - 2⁷ = 630676003 is a prime.

It is a super-2 number, since 2×630676131² = 795504764426258322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 630676092 and 630676101.

It is not an unprimeable number, because it can be changed into a prime (630676331) 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, 105112686 + ... + 105112691.

It is an arithmetic number, because the mean of its divisors is an integer number (210225378).

Almost surely, 2^630676131 is an apocalyptic number.

630676131 is a deficient number, since it is larger than the sum of its proper divisors (210225381).

630676131 is a wasteful number, since it uses less digits than its factorization.

630676131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210225380.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 630676131 is about 25113.2660361013. The cubic root of 630676131 is about 857.5684565418.

The spelling of 630676131 in words is "six hundred thirty million, six hundred seventy-six thousand, one hundred thirty-one".