172287058 has 8 divisors (see below), whose sum is σ = 262667340. Its totient is φ = 84731280.

The previous prime is 172287023. The next prime is 172287091. The reversal of 172287058 is 850782271.

It can be written as a sum of positive squares in 2 ways, for example, as 150970369 + 21316689 = 12287^2 + 4617^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 172287058.

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 3 ways as a sum of consecutive naturals, for example, 705973 + ... + 706216.

Almost surely, 2^172287058 is an apocalyptic number.

172287058 is a deficient number, since it is larger than the sum of its proper divisors (90380282).

172287058 is a wasteful number, since it uses less digits than its factorization.

172287058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412252.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 172287058 is about 13125.8164698429. The cubic root of 172287058 is about 556.4389874523.

The spelling of 172287058 in words is "one hundred seventy-two million, two hundred eighty-seven thousand, fifty-eight".