125888891 has 2 divisors, whose sum is σ = 125888892. Its totient is φ = 125888890.

The previous prime is 125888887. The next prime is 125888897. The reversal of 125888891 is 198888521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125888891 - 2² = 125888887 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (125888897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62944445 + 62944446.

It is an arithmetic number, because the mean of its divisors is an integer number (62944446).

Almost surely, 2^125888891 is an apocalyptic number.

125888891 is a deficient number, since it is larger than the sum of its proper divisors (1).

125888891 is an equidigital number, since it uses as much as digits as its factorization.

125888891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 368640, while the sum is 50.

The square root of 125888891 is about 11220.0218805491. The cubic root of 125888891 is about 501.1823897051.

The spelling of 125888891 in words is "one hundred twenty-five million, eight hundred eighty-eight thousand, eight hundred ninety-one".