172042411 has 4 divisors (see below), whose sum is σ = 173650392. Its totient is φ = 170434432.

The previous prime is 172042391. The next prime is 172042417. The reversal of 172042411 is 114240271.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 172042411 - 2⁵ = 172042379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172042417) 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, 803830 + ... + 804043.

It is an arithmetic number, because the mean of its divisors is an integer number (43412598).

Almost surely, 2^172042411 is an apocalyptic number.

172042411 is a deficient number, since it is larger than the sum of its proper divisors (1607981).

172042411 is a wasteful number, since it uses less digits than its factorization.

172042411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607980.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 172042411 is about 13116.4938531606. The cubic root of 172042411 is about 556.1754822367.

Adding to 172042411 its reverse (114240271), we get a palindrome (286282682).

The spelling of 172042411 in words is "one hundred seventy-two million, forty-two thousand, four hundred eleven".