630319137 has 16 divisors (see below), whose sum is σ = 961107840. Its totient is φ = 359949312.

The previous prime is 630319133. The next prime is 630319139. The reversal of 630319137 is 731913036.

It is not a de Polignac number, because 630319137 - 2² = 630319133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 630319098 and 630319107.

It is not an unprimeable number, because it can be changed into a prime (630319133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26689 + ... + 44417.

It is an arithmetic number, because the mean of its divisors is an integer number (60069240).

Almost surely, 2^630319137 is an apocalyptic number.

It is an amenable number.

630319137 is a deficient number, since it is larger than the sum of its proper divisors (330788703).

630319137 is a wasteful number, since it uses less digits than its factorization.

630319137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19432.

The product of its (nonzero) digits is 10206, while the sum is 33.

The square root of 630319137 is about 25106.1573523309. The cubic root of 630319137 is about 857.4066172282.

The spelling of 630319137 in words is "six hundred thirty million, three hundred nineteen thousand, one hundred thirty-seven".