725151 has 12 divisors (see below), whose sum is σ = 1124952. Its totient is φ = 414288.

The previous prime is 725149. The next prime is 725159. The reversal of 725151 is 151527.

725151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 725151 - 2¹ = 725149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 725151.

It is not an unprimeable number, because it can be changed into a prime (725159) 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, 2320 + ... + 2613.

It is an arithmetic number, because the mean of its divisors is an integer number (93746).

2⁷²⁵¹⁵¹ is an apocalyptic number.

725151 is a deficient number, since it is larger than the sum of its proper divisors (399801).

725151 is a wasteful number, since it uses less digits than its factorization.

725151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950 (or 4943 counting only the distinct ones).

The product of its digits is 350, while the sum is 21.

The square root of 725151 is about 851.5579839330. The cubic root of 725151 is about 89.8413253511.

Adding to 725151 its reverse (151527), we get a palindrome (876678).

The spelling of 725151 in words is "seven hundred twenty-five thousand, one hundred fifty-one".