172946099 has 4 divisors (see below), whose sum is σ = 172972464. Its totient is φ = 172919736.

The previous prime is 172946093. The next prime is 172946119. The reversal of 172946099 is 990649271.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172946099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172946093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5234 + ... + 19320.

It is an arithmetic number, because the mean of its divisors is an integer number (43243116).

Almost surely, 2^172946099 is an apocalyptic number.

172946099 is a deficient number, since it is larger than the sum of its proper divisors (26365).

172946099 is a wasteful number, since it uses less digits than its factorization.

172946099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26364.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 172946099 is about 13150.8972697683. The cubic root of 172946099 is about 557.1475906958.

The spelling of 172946099 in words is "one hundred seventy-two million, nine hundred forty-six thousand, ninety-nine".