125375381 has 4 divisors (see below), whose sum is σ = 129698700. Its totient is φ = 121052064.

The previous prime is 125375339. The next prime is 125375389. The reversal of 125375381 is 183573521.

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 69872881 + 55502500 = 8359^2 + 7450^2 .

It is a cyclic number.

It is not a de Polignac number, because 125375381 - 2⁶ = 125375317 is a prime.

It is a super-2 number, since 2×125375381² = 31437972321790322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125375389) 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, 2161616 + ... + 2161673.

It is an arithmetic number, because the mean of its divisors is an integer number (32424675).

Almost surely, 2^125375381 is an apocalyptic number.

It is an amenable number.

125375381 is a deficient number, since it is larger than the sum of its proper divisors (4323319).

125375381 is an equidigital number, since it uses as much as digits as its factorization.

125375381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323318.

The product of its digits is 25200, while the sum is 35.

The square root of 125375381 is about 11197.1148516035. The cubic root of 125375381 is about 500.5000078177.

The spelling of 125375381 in words is "one hundred twenty-five million, three hundred seventy-five thousand, three hundred eighty-one".