1313145137 has 16 divisors (see below), whose sum is σ = 1367511552. Its totient is φ = 1260067200.

The previous prime is 1313145121. The next prime is 1313145149. The reversal of 1313145137 is 7315413131.

It is a cyclic number.

It is not a de Polignac number, because 1313145137 - 2⁴ = 1313145121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313145167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593888 + ... + 596094.

It is an arithmetic number, because the mean of its divisors is an integer number (85469472).

Almost surely, 2^1313145137 is an apocalyptic number.

It is an amenable number.

1313145137 is a deficient number, since it is larger than the sum of its proper divisors (54366415).

1313145137 is a wasteful number, since it uses less digits than its factorization.

1313145137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488.

The product of its digits is 3780, while the sum is 29.

The square root of 1313145137 is about 36237.3445081176. The cubic root of 1313145137 is about 1095.0591454191.

Adding to 1313145137 its reverse (7315413131), we get a palindrome (8628558268).

The spelling of 1313145137 in words is "one billion, three hundred thirteen million, one hundred forty-five thousand, one hundred thirty-seven".