1315507630 has 16 divisors (see below), whose sum is σ = 2444298624. Its totient is φ = 509228640.

The previous prime is 1315507603. The next prime is 1315507727. The reversal of 1315507630 is 367055131.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 1315507592 and 1315507601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2121477 + ... + 2122096.

It is an arithmetic number, because the mean of its divisors is an integer number (152768664).

Almost surely, 2^1315507630 is an apocalyptic number.

1315507630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1315507630 is a deficient number, since it is larger than the sum of its proper divisors (1128790994).

1315507630 is a wasteful number, since it uses less digits than its factorization.

1315507630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243611.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 1315507630 is about 36269.9273503546. The cubic root of 1315507630 is about 1095.7154627260.

The spelling of 1315507630 in words is "one billion, three hundred fifteen million, five hundred seven thousand, six hundred thirty".