125956407 has 4 divisors (see below), whose sum is σ = 167941880. Its totient is φ = 83970936.

The previous prime is 125956373. The next prime is 125956409. The reversal of 125956407 is 704659521.

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

It is not a de Polignac number, because 125956407 - 2⁷ = 125956279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125956409) 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, 20992732 + ... + 20992737.

It is an arithmetic number, because the mean of its divisors is an integer number (41985470).

Almost surely, 2^125956407 is an apocalyptic number.

125956407 is a deficient number, since it is larger than the sum of its proper divisors (41985473).

125956407 is an equidigital number, since it uses as much as digits as its factorization.

125956407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41985472.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 125956407 is about 11223.0302057867. The cubic root of 125956407 is about 501.2719707701.

The spelling of 125956407 in words is "one hundred twenty-five million, nine hundred fifty-six thousand, four hundred seven".