125818361 has 4 divisors (see below), whose sum is σ = 132440400. Its totient is φ = 119196324.

The previous prime is 125818337. The next prime is 125818379. The reversal of 125818361 is 163818521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125818361 - 2¹⁸ = 125556217 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125818061) 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, 3310991 + ... + 3311028.

It is an arithmetic number, because the mean of its divisors is an integer number (33110100).

Almost surely, 2^125818361 is an apocalyptic number.

It is an amenable number.

125818361 is a deficient number, since it is larger than the sum of its proper divisors (6622039).

125818361 is an equidigital number, since it uses as much as digits as its factorization.

125818361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6622038.

The product of its digits is 11520, while the sum is 35.

The square root of 125818361 is about 11216.8783981997. The cubic root of 125818361 is about 501.0887754153.

The spelling of 125818361 in words is "one hundred twenty-five million, eight hundred eighteen thousand, three hundred sixty-one".