125426251 has 4 divisors (see below), whose sum is σ = 125712400. Its totient is φ = 125140104.

The previous prime is 125426243. The next prime is 125426269. The reversal of 125426251 is 152624521.

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 125426251 - 2³ = 125426243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125421251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142416 + ... + 143293.

It is an arithmetic number, because the mean of its divisors is an integer number (31428100).

Almost surely, 2^125426251 is an apocalyptic number.

125426251 is a deficient number, since it is larger than the sum of its proper divisors (286149).

125426251 is an equidigital number, since it uses as much as digits as its factorization.

125426251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286148.

The product of its digits is 4800, while the sum is 28.

The square root of 125426251 is about 11199.3861885373. The cubic root of 125426251 is about 500.5676898791.

The spelling of 125426251 in words is "one hundred twenty-five million, four hundred twenty-six thousand, two hundred fifty-one".