630044131 has 8 divisors (see below), whose sum is σ = 641586528. Its totient is φ = 618576000.

The previous prime is 630044113. The next prime is 630044153. The reversal of 630044131 is 131440036.

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

It is a cyclic number.

It is not a de Polignac number, because 630044131 - 2⁹ = 630043619 is a prime.

It is a super-2 number, since 2×630044131² = 793911214015090322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630014131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300 + ... + 35521.

It is an arithmetic number, because the mean of its divisors is an integer number (80198316).

Almost surely, 2^630044131 is an apocalyptic number.

630044131 is a deficient number, since it is larger than the sum of its proper divisors (11542397).

630044131 is a wasteful number, since it uses less digits than its factorization.

630044131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37133.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 630044131 is about 25100.6798911902. The cubic root of 630044131 is about 857.2819046023.

Adding to 630044131 its reverse (131440036), we get a palindrome (761484167).

The spelling of 630044131 in words is "six hundred thirty million, forty-four thousand, one hundred thirty-one".