174985421 has 16 divisors (see below), whose sum is σ = 204771840. Its totient is φ = 148080960.

The previous prime is 174985411. The next prime is 174985427. The reversal of 174985421 is 124589471.

It is a cyclic number.

It is not a de Polignac number, because 174985421 - 2¹⁴ = 174969037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (174985427) 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 15 ways as a sum of consecutive naturals, for example, 3770 + ... + 19083.

It is an arithmetic number, because the mean of its divisors is an integer number (12798240).

Almost surely, 2^174985421 is an apocalyptic number.

It is an amenable number.

174985421 is a deficient number, since it is larger than the sum of its proper divisors (29786419).

174985421 is a wasteful number, since it uses less digits than its factorization.

174985421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22916.

The product of its digits is 80640, while the sum is 41.

The square root of 174985421 is about 13228.2055094408. The cubic root of 174985421 is about 559.3289378797.

The spelling of 174985421 in words is "one hundred seventy-four million, nine hundred eighty-five thousand, four hundred twenty-one".