1312510151 has 4 divisors (see below), whose sum is σ = 1325253072. Its totient is φ = 1299767232.

The previous prime is 1312510117. The next prime is 1312510169. The reversal of 1312510151 is 1510152131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312510151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312510351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6371306 + ... + 6371511.

It is an arithmetic number, because the mean of its divisors is an integer number (331313268).

Almost surely, 2^1312510151 is an apocalyptic number.

1312510151 is a deficient number, since it is larger than the sum of its proper divisors (12742921).

1312510151 is a wasteful number, since it uses less digits than its factorization.

1312510151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12742920.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 1312510151 is about 36228.5819623126. The cubic root of 1312510151 is about 1094.8826075995.

Adding to 1312510151 its reverse (1510152131), we get a palindrome (2822662282).

The spelling of 1312510151 in words is "one billion, three hundred twelve million, five hundred ten thousand, one hundred fifty-one".