725206143 has 4 divisors (see below), whose sum is σ = 966941528. Its totient is φ = 483470760.

The previous prime is 725206133. The next prime is 725206151. The reversal of 725206143 is 341602527.

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

It is not a de Polignac number, because 725206143 - 2⁴ = 725206127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 725206143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725206133) 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, 120867688 + ... + 120867693.

It is an arithmetic number, because the mean of its divisors is an integer number (241735382).

Almost surely, 2^725206143 is an apocalyptic number.

725206143 is a deficient number, since it is larger than the sum of its proper divisors (241735385).

725206143 is a wasteful number, since it uses less digits than its factorization.

725206143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241735384.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 725206143 is about 26929.6517430137. The cubic root of 725206143 is about 898.4360257547.

The spelling of 725206143 in words is "seven hundred twenty-five million, two hundred six thousand, one hundred forty-three".