725143287 has 32 divisors (see below), whose sum is σ = 1103362560. Its totient is φ = 419323520.

The previous prime is 725143283. The next prime is 725143301. The reversal of 725143287 is 782341527.

It is not a de Polignac number, because 725143287 - 2² = 725143283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725143283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385393 + ... + 387269.

It is an arithmetic number, because the mean of its divisors is an integer number (34480080).

Almost surely, 2^725143287 is an apocalyptic number.

725143287 is a deficient number, since it is larger than the sum of its proper divisors (378219273).

725143287 is a wasteful number, since it uses less digits than its factorization.

725143287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423.

The product of its digits is 94080, while the sum is 39.

The square root of 725143287 is about 26928.4846770107. The cubic root of 725143287 is about 898.4100682036.

The spelling of 725143287 in words is "seven hundred twenty-five million, one hundred forty-three thousand, two hundred eighty-seven".