125956403 has 4 divisors (see below), whose sum is σ = 126219840. Its totient is φ = 125692968.

The previous prime is 125956373. The next prime is 125956409. The reversal of 125956403 is 304659521.

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

It is a cyclic number.

It is not a de Polignac number, because 125956403 - 2⁸ = 125956147 is a prime.

It is a Duffinian 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, 131000 + ... + 131957.

It is an arithmetic number, because the mean of its divisors is an integer number (31554960).

Almost surely, 2^125956403 is an apocalyptic number.

125956403 is a deficient number, since it is larger than the sum of its proper divisors (263437).

125956403 is an equidigital number, since it uses as much as digits as its factorization.

125956403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263436.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 125956403 is about 11223.0300275817. The cubic root of 125956403 is about 501.2719654638.

The spelling of 125956403 in words is "one hundred twenty-five million, nine hundred fifty-six thousand, four hundred three".