1310999504 has 10 divisors (see below), whose sum is σ = 2540061570. Its totient is φ = 655499744.

The previous prime is 1310999479. The next prime is 1310999509. The reversal of 1310999504 is 4059990131.

It can be written as a sum of positive squares in only one way, i.e., 1310440000 + 559504 = 36200^2 + 748^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310999509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40968719 + ... + 40968750.

It is an arithmetic number, because the mean of its divisors is an integer number (254006157).

Almost surely, 2^1310999504 is an apocalyptic number.

It is an amenable number.

1310999504 is a deficient number, since it is larger than the sum of its proper divisors (1229062066).

1310999504 is an equidigital number, since it uses as much as digits as its factorization.

1310999504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81937477 (or 81937471 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 1310999504 is about 36207.7271310973. The cubic root of 1310999504 is about 1094.4623908907.

The spelling of 1310999504 in words is "one billion, three hundred ten million, nine hundred ninety-nine thousand, five hundred four".