125352251 has 4 divisors (see below), whose sum is σ = 129395904. Its totient is φ = 121308600.

The previous prime is 125352229. The next prime is 125352257. The reversal of 125352251 is 152253521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152253521 = 7 ⋅21750503.

It is a cyclic number.

It is not a de Polignac number, because 125352251 - 2⁶ = 125352187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125352251.

It is not an unprimeable number, because it can be changed into a prime (125352257) 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, 2021780 + ... + 2021841.

It is an arithmetic number, because the mean of its divisors is an integer number (32348976).

Almost surely, 2^125352251 is an apocalyptic number.

125352251 is a deficient number, since it is larger than the sum of its proper divisors (4043653).

125352251 is an equidigital number, since it uses as much as digits as its factorization.

125352251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043652.

The product of its digits is 3000, while the sum is 26.

The square root of 125352251 is about 11196.0819486104. The cubic root of 125352251 is about 500.4692275133.

The spelling of 125352251 in words is "one hundred twenty-five million, three hundred fifty-two thousand, two hundred fifty-one".