1307357121 has 16 divisors (see below), whose sum is σ = 1994765184. Its totient is φ = 746085504.

The previous prime is 1307357113. The next prime is 1307357143. The reversal of 1307357121 is 1217537031.

It is not a de Polignac number, because 1307357121 - 2³ = 1307357113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1307357521) 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, 24036 + ... + 56501.

It is an arithmetic number, because the mean of its divisors is an integer number (124672824).

Almost surely, 2^1307357121 is an apocalyptic number.

It is an amenable number.

1307357121 is a deficient number, since it is larger than the sum of its proper divisors (687408063).

1307357121 is an equidigital number, since it uses as much as digits as its factorization.

1307357121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81320.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 1307357121 is about 36157.3937252120. The cubic root of 1307357121 is about 1093.4478599190.

The spelling of 1307357121 in words is "one billion, three hundred seven million, three hundred fifty-seven thousand, one hundred twenty-one".