1207256313 has 16 divisors (see below), whose sum is σ = 1684380096. Its totient is φ = 768306240.

The previous prime is 1207256311. The next prime is 1207256327. The reversal of 1207256313 is 3136527021.

It is not a de Polignac number, because 1207256313 - 2¹ = 1207256311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1207256311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96723 + ... + 108488.

It is an arithmetic number, because the mean of its divisors is an integer number (105273756).

Almost surely, 2^1207256313 is an apocalyptic number.

It is an amenable number.

1207256313 is a deficient number, since it is larger than the sum of its proper divisors (477123783).

1207256313 is a wasteful number, since it uses less digits than its factorization.

1207256313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205304.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 1207256313 is about 34745.5941523526. The cubic root of 1207256313 is about 1064.7962060184.

The spelling of 1207256313 in words is "one billion, two hundred seven million, two hundred fifty-six thousand, three hundred thirteen".