725130 has 48 divisors (see below), whose sum is σ = 2156544. Its totient is φ = 165600.

The previous prime is 725119. The next prime is 725147. The reversal of 725130 is 31527.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 11.

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 23 ways as a sum of consecutive naturals, for example, 55 + ... + 1205.

It is an arithmetic number, because the mean of its divisors is an integer number (44928).

2⁷²⁵¹³⁰ is an apocalyptic number.

725130 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 725130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078272).

725130 is an abundant number, since it is smaller than the sum of its proper divisors (1431414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725130 is a wasteful number, since it uses less digits than its factorization.

725130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 725130 is about 851.5456535031. The cubic root of 725130 is about 89.8404580898.

Adding to 725130 its reverse (31527), we get a palindrome (756657).

The spelling of 725130 in words is "seven hundred twenty-five thousand, one hundred thirty".