125623805 has 4 divisors (see below), whose sum is σ = 150748572. Its totient is φ = 100499040.

The previous prime is 125623787. The next prime is 125623867. The reversal of 125623805 is 508326521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 80317444 + 45306361 = 8962^2 + 6731^2 .

It is not a de Polignac number, because 125623805 - 2¹⁰ = 125622781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12562376 + ... + 12562385.

It is an arithmetic number, because the mean of its divisors is an integer number (37687143).

Almost surely, 2^125623805 is an apocalyptic number.

It is an amenable number.

125623805 is a deficient number, since it is larger than the sum of its proper divisors (25124767).

125623805 is an equidigital number, since it uses as much as digits as its factorization.

125623805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25124766.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 125623805 is about 11208.2025766846. The cubic root of 125623805 is about 500.8303602404.

The spelling of 125623805 in words is "one hundred twenty-five million, six hundred twenty-three thousand, eight hundred five".