1312371406 has 16 divisors (see below), whose sum is σ = 2089962864. Its totient is φ = 615924864.

The previous prime is 1312371383. The next prime is 1312371409. The reversal of 1312371406 is 6041732131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312371409) 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, 39060 + ... + 64423.

It is an arithmetic number, because the mean of its divisors is an integer number (130622679).

Almost surely, 2^1312371406 is an apocalyptic number.

1312371406 is a deficient number, since it is larger than the sum of its proper divisors (777591458).

1312371406 is a wasteful number, since it uses less digits than its factorization.

1312371406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103875.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1312371406 is about 36226.6670561894. The cubic root of 1312371406 is about 1094.8440263511.

The spelling of 1312371406 in words is "one billion, three hundred twelve million, three hundred seventy-one thousand, four hundred six".