172924243 has 2 divisors, whose sum is σ = 172924244. Its totient is φ = 172924242.

The previous prime is 172924237. The next prime is 172924259. The reversal of 172924243 is 342429271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172924243 - 2⁵ = 172924211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172924199 and 172924208.

It is not a weakly prime, because it can be changed into another prime (172924223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86462121 + 86462122.

It is an arithmetic number, because the mean of its divisors is an integer number (86462122).

Almost surely, 2^172924243 is an apocalyptic number.

172924243 is a deficient number, since it is larger than the sum of its proper divisors (1).

172924243 is an equidigital number, since it uses as much as digits as its factorization.

172924243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 172924243 is about 13150.0662735973. The cubic root of 172924243 is about 557.1241199328.

The spelling of 172924243 in words is "one hundred seventy-two million, nine hundred twenty-four thousand, two hundred forty-three".