12925405 has 4 divisors (see below), whose sum is σ = 15510492. Its totient is φ = 10340320.

The previous prime is 12925369. The next prime is 12925421. The reversal of 12925405 is 50452921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2304324 + 10621081 = 1518^2 + 3259^2 .

It is not a de Polignac number, because 12925405 - 2⁷ = 12925277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292536 + ... + 1292545.

It is an arithmetic number, because the mean of its divisors is an integer number (3877623).

Almost surely, 2^12925405 is an apocalyptic number.

It is an amenable number.

12925405 is a deficient number, since it is larger than the sum of its proper divisors (2585087).

12925405 is an equidigital number, since it uses as much as digits as its factorization.

12925405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585086.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 12925405 is about 3595.1919281173. The cubic root of 12925405 is about 234.6828678320.

The spelling of 12925405 in words is "twelve million, nine hundred twenty-five thousand, four hundred five".