172053994 has 12 divisors (see below), whose sum is σ = 300216834. Its totient is φ = 73737384.

The previous prime is 172053989. The next prime is 172054009. The reversal of 172053994 is 499350271.

It can be written as a sum of positive squares in only one way, i.e., 108930969 + 63123025 = 10437^2 + 7945^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 877729 + ... + 877924.

Almost surely, 2^172053994 is an apocalyptic number.

172053994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

172053994 is a deficient number, since it is larger than the sum of its proper divisors (128162840).

172053994 is a wasteful number, since it uses less digits than its factorization.

172053994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755669 (or 1755662 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 172053994 is about 13116.9353890305. The cubic root of 172053994 is about 556.1879637250.

The spelling of 172053994 in words is "one hundred seventy-two million, fifty-three thousand, nine hundred ninety-four".