125112611 has 4 divisors (see below), whose sum is σ = 134736672. Its totient is φ = 115488552.

The previous prime is 125112601. The next prime is 125112619. The reversal of 125112611 is 116211521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 116211521 = 3947 ⋅29443.

It is a cyclic number.

It is not a de Polignac number, because 125112611 - 2²⁶ = 58003747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125112619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4812011 + ... + 4812036.

It is an arithmetic number, because the mean of its divisors is an integer number (33684168).

Almost surely, 2^125112611 is an apocalyptic number.

125112611 is a deficient number, since it is larger than the sum of its proper divisors (9624061).

125112611 is an equidigital number, since it uses as much as digits as its factorization.

125112611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9624060.

The product of its digits is 120, while the sum is 20.

The square root of 125112611 is about 11185.3748707855. The cubic root of 125112611 is about 500.1501029337.

The spelling of 125112611 in words is "one hundred twenty-five million, one hundred twelve thousand, six hundred eleven".