1312408037 has 4 divisors (see below), whose sum is σ = 1369469280. Its totient is φ = 1255346796.

The previous prime is 1312407989. The next prime is 1312408063. The reversal of 1312408037 is 7308042131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1312408037 - 2²⁶ = 1245299173 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 (1312408067) 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, 28530587 + ... + 28530632.

It is an arithmetic number, because the mean of its divisors is an integer number (342367320).

Almost surely, 2^1312408037 is an apocalyptic number.

It is an amenable number.

1312408037 is a deficient number, since it is larger than the sum of its proper divisors (57061243).

1312408037 is an equidigital number, since it uses as much as digits as its factorization.

1312408037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57061242.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1312408037 is about 36227.1726332597. The cubic root of 1312408037 is about 1094.8542127100.

The spelling of 1312408037 in words is "one billion, three hundred twelve million, four hundred eight thousand, thirty-seven".