1313540131 has 8 divisors (see below), whose sum is σ = 1324738800. Its totient is φ = 1302366720.

The previous prime is 1313540119. The next prime is 1313540149. The reversal of 1313540131 is 1310453131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313540131 - 2¹³ = 1313531939 is a prime.

It is a super-2 number, since 2×1313540131² = 3450775351494994322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313540101) 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, 106611 + ... + 118291.

It is an arithmetic number, because the mean of its divisors is an integer number (165592350).

Almost surely, 2^1313540131 is an apocalyptic number.

1313540131 is a deficient number, since it is larger than the sum of its proper divisors (11198669).

1313540131 is a wasteful number, since it uses less digits than its factorization.

1313540131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12629.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1313540131 is about 36242.7941941567. The cubic root of 1313540131 is about 1095.1689323262.

Adding to 1313540131 its reverse (1310453131), we get a palindrome (2623993262).

The spelling of 1313540131 in words is "one billion, three hundred thirteen million, five hundred forty thousand, one hundred thirty-one".