2125405317 has 16 divisors (see below), whose sum is σ = 3270782592. Its totient is φ = 1202491200.

The previous prime is 2125405301. The next prime is 2125405327. The reversal of 2125405317 is 7135045212.

It is not a de Polignac number, because 2125405317 - 2⁴ = 2125405301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125405327) 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, 498918 + ... + 503159.

It is an arithmetic number, because the mean of its divisors is an integer number (204423912).

Almost surely, 2^2125405317 is an apocalyptic number.

It is an amenable number.

2125405317 is a deficient number, since it is larger than the sum of its proper divisors (1145377275).

2125405317 is a wasteful number, since it uses less digits than its factorization.

2125405317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002188.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 2125405317 is about 46102.1183569692. The cubic root of 2125405317 is about 1285.7225300653.

The spelling of 2125405317 in words is "two billion, one hundred twenty-five million, four hundred five thousand, three hundred seventeen".