174021113921 has 8 divisors (see below), whose sum is σ = 184683195144. Its totient is φ = 163406315520.

The previous prime is 174021113737. The next prime is 174021113923. The reversal of 174021113921 is 129311120471.

It can be written as a sum of positive squares in 4 ways, for example, as 1205478400 + 172815635521 = 34720^2 + 415711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 174021113921 - 2¹⁸ = 174020851777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (174021113923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11813120 + ... + 11827841.

It is an arithmetic number, because the mean of its divisors is an integer number (23085399393).

Almost surely, 2^174021113921 is an apocalyptic number.

It is an amenable number.

174021113921 is a deficient number, since it is larger than the sum of its proper divisors (10662081223).

174021113921 is a wasteful number, since it uses less digits than its factorization.

174021113921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23641411.

The product of its (nonzero) digits is 3024, while the sum is 32.

The spelling of 174021113921 in words is "one hundred seventy-four billion, twenty-one million, one hundred thirteen thousand, nine hundred twenty-one".