172442053 has 4 divisors (see below), whose sum is σ = 197076640. Its totient is φ = 147807468.

The previous prime is 172442009. The next prime is 172442077. The reversal of 172442053 is 350244271.

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 172442053 - 2⁹ = 172441541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172442093) 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, 12317283 + ... + 12317296.

It is an arithmetic number, because the mean of its divisors is an integer number (49269160).

Almost surely, 2^172442053 is an apocalyptic number.

It is an amenable number.

172442053 is a deficient number, since it is larger than the sum of its proper divisors (24634587).

172442053 is an equidigital number, since it uses as much as digits as its factorization.

172442053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24634586.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 172442053 is about 13131.7193466811. The cubic root of 172442053 is about 556.6058009316.

It can be divided in two parts, 172 and 442053, that added together give a square (442225 = 665²).

The spelling of 172442053 in words is "one hundred seventy-two million, four hundred forty-two thousand, fifty-three".