725101 has 12 divisors (see below), whose sum is σ = 833812. Its totient is φ = 626688.

The previous prime is 725099. The next prime is 725111. The reversal of 725101 is 101527.

It can be written as a sum of positive squares in 6 ways, for example, as 900 + 724201 = 30^2 + 851^2 .

It is not a de Polignac number, because 725101 - 2¹ = 725099 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 (725111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3661 + ... + 3853.

2⁷²⁵¹⁰¹ is an apocalyptic number.

It is an amenable number.

725101 is a deficient number, since it is larger than the sum of its proper divisors (108711).

725101 is a wasteful number, since it uses less digits than its factorization.

725101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 725101 is about 851.5286254730. The cubic root of 725101 is about 89.8392604159.

Adding to 725101 its reverse (101527), we get a palindrome (826628).

The spelling of 725101 in words is "seven hundred twenty-five thousand, one hundred one".