630735131 has 8 divisors (see below), whose sum is σ = 687852480. Its totient is φ = 574846272.

The previous prime is 630735121. The next prime is 630735169. The reversal of 630735131 is 131537036.

It is a happy number.

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

It is not a de Polignac number, because 630735131 - 2¹⁰ = 630734107 is a prime.

It is a super-2 number, since 2×630735131² = 795653610955174322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 630735094 and 630735103.

It is not an unprimeable number, because it can be changed into a prime (630735121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306050 + ... + 308103.

It is an arithmetic number, because the mean of its divisors is an integer number (85981560).

Almost surely, 2^630735131 is an apocalyptic number.

630735131 is a deficient number, since it is larger than the sum of its proper divisors (57117349).

630735131 is a wasteful number, since it uses less digits than its factorization.

630735131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614245.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 630735131 is about 25114.4406865851. The cubic root of 630735131 is about 857.5951976634.

The spelling of 630735131 in words is "six hundred thirty million, seven hundred thirty-five thousand, one hundred thirty-one".