172246995 has 48 divisors (see below), whose sum is σ = 305690112. Its totient is φ = 89701440.

The previous prime is 172246909. The next prime is 172246999. The reversal of 172246995 is 599642271.

It is not a de Polignac number, because 172246995 - 2⁹ = 172246483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 172246995.

It is not an unprimeable number, because it can be changed into a prime (172246999) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 399430 + ... + 399860.

It is an arithmetic number, because the mean of its divisors is an integer number (6368544).

Almost surely, 2^172246995 is an apocalyptic number.

172246995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

172246995 is a deficient number, since it is larger than the sum of its proper divisors (133443117).

172246995 is a wasteful number, since it uses less digits than its factorization.

172246995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 629 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 172246995 is about 13124.2902665249. The cubic root of 172246995 is about 556.3958533489.

The spelling of 172246995 in words is "one hundred seventy-two million, two hundred forty-six thousand, nine hundred ninety-five".