125040907 has 4 divisors (see below), whose sum is σ = 125591976. Its totient is φ = 124489840.

The previous prime is 125040893. The next prime is 125040931. The reversal of 125040907 is 709040521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 709040521 = 7 ⋅101291503.

It is a cyclic number.

It is not a de Polignac number, because 125040907 - 2²³ = 116652299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125040997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275194 + ... + 275647.

It is an arithmetic number, because the mean of its divisors is an integer number (31397994).

Almost surely, 2^125040907 is an apocalyptic number.

125040907 is a deficient number, since it is larger than the sum of its proper divisors (551069).

125040907 is an equidigital number, since it uses as much as digits as its factorization.

125040907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551068.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 125040907 is about 11182.1691545067. The cubic root of 125040907 is about 500.0545367179.

The spelling of 125040907 in words is "one hundred twenty-five million, forty thousand, nine hundred seven".