172054099 has 16 divisors (see below), whose sum is σ = 208558080. Its totient is φ = 138742560.

The previous prime is 172054097. The next prime is 172054109. The reversal of 172054099 is 990450271.

It is a cyclic number.

It is not a de Polignac number, because 172054099 - 2¹ = 172054097 is a prime.

It is a super-2 number, since 2×172054099² = 59205225965403602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172054097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1062 + ... + 18580.

It is an arithmetic number, because the mean of its divisors is an integer number (13034880).

Almost surely, 2^172054099 is an apocalyptic number.

172054099 is a deficient number, since it is larger than the sum of its proper divisors (36503981).

172054099 is a wasteful number, since it uses less digits than its factorization.

172054099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17610.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 172054099 is about 13116.9393914892. The cubic root of 172054099 is about 556.1880768673.

The spelling of 172054099 in words is "one hundred seventy-two million, fifty-four thousand, ninety-nine".