172054955 has 4 divisors (see below), whose sum is σ = 206465952. Its totient is φ = 137643960.

The previous prime is 172054931. The next prime is 172054957. The reversal of 172054955 is 559450271.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 559450271 = 79 ⋅7081649.

It is not a de Polignac number, because 172054955 - 2¹² = 172050859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172054957) 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 3 ways as a sum of consecutive naturals, for example, 17205491 + ... + 17205500.

It is an arithmetic number, because the mean of its divisors is an integer number (51616488).

Almost surely, 2^172054955 is an apocalyptic number.

172054955 is a deficient number, since it is larger than the sum of its proper divisors (34410997).

172054955 is an equidigital number, since it uses as much as digits as its factorization.

172054955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34410996.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 172054955 is about 13116.9720210116. The cubic root of 172054955 is about 556.1889992442.

The spelling of 172054955 in words is "one hundred seventy-two million, fifty-four thousand, nine hundred fifty-five".