1313616238 has 16 divisors (see below), whose sum is σ = 2185989120. Its totient is φ = 586977400.

The previous prime is 1313616233. The next prime is 1313616247. The reversal of 1313616238 is 8326163131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313616233) 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, 504718 + ... + 507313.

It is an arithmetic number, because the mean of its divisors is an integer number (136624320).

Almost surely, 2^1313616238 is an apocalyptic number.

1313616238 is a deficient number, since it is larger than the sum of its proper divisors (872372882).

1313616238 is a wasteful number, since it uses less digits than its factorization.

1313616238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012103.

The product of its digits is 15552, while the sum is 34.

The square root of 1313616238 is about 36243.8441393846. The cubic root of 1313616238 is about 1095.1900834151.

Adding to 1313616238 its reverse (8326163131), we get a palindrome (9639779369).

The spelling of 1313616238 in words is "one billion, three hundred thirteen million, six hundred sixteen thousand, two hundred thirty-eight".