173242369 has 4 divisors (see below), whose sum is σ = 175828144. Its totient is φ = 170656596.

The previous prime is 173242357. The next prime is 173242387. The reversal of 173242369 is 963242371.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 173242369 - 2⁵ = 173242337 is a prime.

It is a super-2 number, since 2×173242369² = 60025836833464322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173242469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292787 + ... + 1292920.

It is an arithmetic number, because the mean of its divisors is an integer number (43957036).

Almost surely, 2^173242369 is an apocalyptic number.

It is an amenable number.

173242369 is a deficient number, since it is larger than the sum of its proper divisors (2585775).

173242369 is an equidigital number, since it uses as much as digits as its factorization.

173242369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585774.

The product of its digits is 54432, while the sum is 37.

The square root of 173242369 is about 13162.1567001765. The cubic root of 173242369 is about 557.4655547903.

The spelling of 173242369 in words is "one hundred seventy-three million, two hundred forty-two thousand, three hundred sixty-nine".