125706091 has 4 divisors (see below), whose sum is σ = 143664112. Its totient is φ = 107748072.

The previous prime is 125706019. The next prime is 125706101. The reversal of 125706091 is 190607521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125706091 - 2⁷ = 125705963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125706001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8979000 + ... + 8979013.

It is an arithmetic number, because the mean of its divisors is an integer number (35916028).

Almost surely, 2^125706091 is an apocalyptic number.

125706091 is a deficient number, since it is larger than the sum of its proper divisors (17958021).

125706091 is an equidigital number, since it uses as much as digits as its factorization.

125706091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17958020.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 125706091 is about 11211.8727695243. The cubic root of 125706091 is about 500.9396875350.

The spelling of 125706091 in words is "one hundred twenty-five million, seven hundred six thousand, ninety-one".