725143 has 4 divisors (see below), whose sum is σ = 727120. Its totient is φ = 723168.

The previous prime is 725119. The next prime is 725147. The reversal of 725143 is 341527.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 725143 - 2⁵ = 725111 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 (725147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258 + ... + 1231.

It is an arithmetic number, because the mean of its divisors is an integer number (181780).

2⁷²⁵¹⁴³ is an apocalyptic number.

725143 is a deficient number, since it is larger than the sum of its proper divisors (1977).

725143 is a wasteful number, since it uses less digits than its factorization.

725143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976.

The product of its digits is 840, while the sum is 22.

The square root of 725143 is about 851.5532866474. The cubic root of 725143 is about 89.8409949678.

It can be divided in two parts, 725 and 143, that added together give a palindrome (868).

The spelling of 725143 in words is "seven hundred twenty-five thousand, one hundred forty-three".