1313542500 has 120 divisors (see below), whose sum is σ = 3919970208. Its totient is φ = 342048000.

The previous prime is 1313542499. The next prime is 1313542579. The reversal of 1313542500 is 52453131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 320464 + ... + 324536.

Almost surely, 2^1313542500 is an apocalyptic number.

1313542500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1313542500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1959985104).

1313542500 is an abundant number, since it is smaller than the sum of its proper divisors (2606427708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313542500 is a wasteful number, since it uses less digits than its factorization.

1313542500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143 (or 4126 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1313542500 is about 36242.8268765007. The cubic root of 1313542500 is about 1095.1695907133.

Adding to 1313542500 its reverse (52453131), we get a palindrome (1365995631).

The spelling of 1313542500 in words is "one billion, three hundred thirteen million, five hundred forty-two thousand, five hundred".