125782823 has 4 divisors (see below), whose sum is σ = 125805840. Its totient is φ = 125759808.

The previous prime is 125782807. The next prime is 125782871. The reversal of 125782823 is 328287521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328287521 = 4231 ⋅77591.

It is a cyclic number.

It is not a de Polignac number, because 125782823 - 2⁴ = 125782807 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 (125784823) 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, 1886 + ... + 15972.

It is an arithmetic number, because the mean of its divisors is an integer number (31451460).

Almost surely, 2^125782823 is an apocalyptic number.

125782823 is a deficient number, since it is larger than the sum of its proper divisors (23017).

125782823 is an equidigital number, since it uses as much as digits as its factorization.

125782823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23016.

The product of its digits is 53760, while the sum is 38.

The square root of 125782823 is about 11215.2941557500. The cubic root of 125782823 is about 501.0415926627.

The spelling of 125782823 in words is "one hundred twenty-five million, seven hundred eighty-two thousand, eight hundred twenty-three".