725702145 has 32 divisors (see below), whose sum is σ = 1332837120. Its totient is φ = 330289920.

The previous prime is 725702113. The next prime is 725702161. The reversal of 725702145 is 541207527.

It is not a de Polignac number, because 725702145 - 2⁵ = 725702113 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8955 + ... + 39135.

It is an arithmetic number, because the mean of its divisors is an integer number (41651160).

Almost surely, 2^725702145 is an apocalyptic number.

It is an amenable number.

725702145 is a deficient number, since it is larger than the sum of its proper divisors (607134975).

725702145 is a wasteful number, since it uses less digits than its factorization.

725702145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30425.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 725702145 is about 26938.8593856533. The cubic root of 725702145 is about 898.6408063833.

The spelling of 725702145 in words is "seven hundred twenty-five million, seven hundred two thousand, one hundred forty-five".