125812077 has 4 divisors (see below), whose sum is σ = 167749440. Its totient is φ = 83874716.

The previous prime is 125812031. The next prime is 125812123. The reversal of 125812077 is 770218521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (125812031) and next prime (125812123).

It is a cyclic number.

It is not a de Polignac number, because 125812077 - 2⁷ = 125811949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125812877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20968677 + ... + 20968682.

It is an arithmetic number, because the mean of its divisors is an integer number (41937360).

Almost surely, 2^125812077 is an apocalyptic number.

It is an amenable number.

125812077 is a deficient number, since it is larger than the sum of its proper divisors (41937363).

125812077 is an equidigital number, since it uses as much as digits as its factorization.

125812077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41937362.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 125812077 is about 11216.5982811189. The cubic root of 125812077 is about 501.0804329808.

The spelling of 125812077 in words is "one hundred twenty-five million, eight hundred twelve thousand, seventy-seven".