1307425121 has 4 divisors (see below), whose sum is σ = 1308628992. Its totient is φ = 1306221252.

The previous prime is 1307425057. The next prime is 1307425127. The reversal of 1307425121 is 1215247031.

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 1307425121 - 2⁶ = 1307425057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1307425127) 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, 600305 + ... + 602478.

It is an arithmetic number, because the mean of its divisors is an integer number (327157248).

Almost surely, 2^1307425121 is an apocalyptic number.

It is an amenable number.

1307425121 is a deficient number, since it is larger than the sum of its proper divisors (1203871).

1307425121 is a wasteful number, since it uses less digits than its factorization.

1307425121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203870.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1307425121 is about 36158.3340462472. The cubic root of 1307425121 is about 1093.4668175459.

The spelling of 1307425121 in words is "one billion, three hundred seven million, four hundred twenty-five thousand, one hundred twenty-one".