125775823 has 4 divisors (see below), whose sum is σ = 128843568. Its totient is φ = 122708080.

The previous prime is 125775803. The next prime is 125775827. The reversal of 125775823 is 328577521.

It is a happy number.

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

It is not a de Polignac number, because 125775823 - 2⁹ = 125775311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125775827) 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, 1533811 + ... + 1533892.

It is an arithmetic number, because the mean of its divisors is an integer number (32210892).

Almost surely, 2^125775823 is an apocalyptic number.

125775823 is a deficient number, since it is larger than the sum of its proper divisors (3067745).

125775823 is an equidigital number, since it uses as much as digits as its factorization.

125775823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067744.

The product of its digits is 117600, while the sum is 40.

The square root of 125775823 is about 11214.9820775604. The cubic root of 125775823 is about 501.0322979219.

The spelling of 125775823 in words is "one hundred twenty-five million, seven hundred seventy-five thousand, eight hundred twenty-three".