174461989 has 4 divisors (see below), whose sum is σ = 187882156. Its totient is φ = 161041824.

The previous prime is 174461977. The next prime is 174462019. The reversal of 174461989 is 989164471.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 989164471 = 61 ⋅16215811.

It can be written as a sum of positive squares in 2 ways, for example, as 82628100 + 91833889 = 9090^2 + 9583^2 .

It is a cyclic number.

It is not a de Polignac number, because 174461989 - 2²¹ = 172364837 is a prime.

It is a super-2 number, since 2×174461989² = 60873971211672242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (174461389) 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, 6710064 + ... + 6710089.

It is an arithmetic number, because the mean of its divisors is an integer number (46970539).

Almost surely, 2^174461989 is an apocalyptic number.

It is an amenable number.

174461989 is a deficient number, since it is larger than the sum of its proper divisors (13420167).

174461989 is a wasteful number, since it uses less digits than its factorization.

174461989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13420166.

The product of its digits is 435456, while the sum is 49.

The square root of 174461989 is about 13208.4059976971. The cubic root of 174461989 is about 558.7706759979.

The spelling of 174461989 in words is "one hundred seventy-four million, four hundred sixty-one thousand, nine hundred eighty-nine".