725126 has 16 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 342720.

The previous prime is 725119. The next prime is 725147. The reversal of 725126 is 621527.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725126.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2915 + ... + 3153.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2⁷²⁵¹²⁶ is an apocalyptic number.

725126 is a deficient number, since it is larger than the sum of its proper divisors (423994).

725126 is a wasteful number, since it uses less digits than its factorization.

725126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319.

The product of its digits is 840, while the sum is 23.

The square root of 725126 is about 851.5433048295. The cubic root of 725126 is about 89.8402928953.

The spelling of 725126 in words is "seven hundred twenty-five thousand, one hundred twenty-six".