172485290 has 16 divisors (see below), whose sum is σ = 310663080. Its totient is φ = 68952000.

The previous prime is 172485289. The next prime is 172485311. The reversal of 172485290 is 92584271.

It can be written as a sum of positive squares in 4 ways, for example, as 150872089 + 21613201 = 12283^2 + 4649^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16040 + ... + 24540.

Almost surely, 2^172485290 is an apocalyptic number.

172485290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172485290 is a deficient number, since it is larger than the sum of its proper divisors (138177790).

172485290 is a wasteful number, since it uses less digits than its factorization.

172485290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10537.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 172485290 is about 13133.3655244952. The cubic root of 172485290 is about 556.6523169515.

The spelling of 172485290 in words is "one hundred seventy-two million, four hundred eighty-five thousand, two hundred ninety".