125783444 has 6 divisors (see below), whose sum is σ = 220121034. Its totient is φ = 62891720.

The previous prime is 125783423. The next prime is 125783491. The reversal of 125783444 is 444387521.

It can be written as a sum of positive squares in only one way, i.e., 90973444 + 34810000 = 9538^2 + 5900^2 .

It is a super-2 number, since 2×125783444² = 31642949569002272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125783398 and 125783407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15722927 + ... + 15722934.

It is an arithmetic number, because the mean of its divisors is an integer number (36686839).

Almost surely, 2^125783444 is an apocalyptic number.

It is an amenable number.

125783444 is a deficient number, since it is larger than the sum of its proper divisors (94337590).

125783444 is a wasteful number, since it uses less digits than its factorization.

125783444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31445865 (or 31445863 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 125783444 is about 11215.3218411243. The cubic root of 125783444 is about 501.0424172224.

The spelling of 125783444 in words is "one hundred twenty-five million, seven hundred eighty-three thousand, four hundred forty-four".