125089091 has 2 divisors, whose sum is σ = 125089092. Its totient is φ = 125089090.

The previous prime is 125089087. The next prime is 125089121. The reversal of 125089091 is 190980521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125089091 - 2² = 125089087 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125089001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62544545 + 62544546.

It is an arithmetic number, because the mean of its divisors is an integer number (62544546).

Almost surely, 2^125089091 is an apocalyptic number.

125089091 is a deficient number, since it is larger than the sum of its proper divisors (1).

125089091 is an equidigital number, since it uses as much as digits as its factorization.

125089091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 125089091 is about 11184.3234484702. The cubic root of 125089091 is about 500.1187597900.

The spelling of 125089091 in words is "one hundred twenty-five million, eighty-nine thousand, ninety-one".