172985914 has 8 divisors (see below), whose sum is σ = 274742388. Its totient is φ = 81405120.

The previous prime is 172985909. The next prime is 172985933. The reversal of 172985914 is 419589271.

It can be written as a sum of positive squares in 2 ways, for example, as 148035889 + 24950025 = 12167^2 + 4995^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2543877 + ... + 2543944.

Almost surely, 2^172985914 is an apocalyptic number.

172985914 is a deficient number, since it is larger than the sum of its proper divisors (101756474).

172985914 is a wasteful number, since it uses less digits than its factorization.

172985914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5087840.

The product of its digits is 181440, while the sum is 46.

The square root of 172985914 is about 13152.4109576914. The cubic root of 172985914 is about 557.1903422224.

The spelling of 172985914 in words is "one hundred seventy-two million, nine hundred eighty-five thousand, nine hundred fourteen".