674181 has 12 divisors (see below), whose sum is σ = 981708. Its totient is φ = 445824.

The previous prime is 674173. The next prime is 674183. The reversal of 674181 is 181476.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 349281 + 324900 = 591^2 + 570^2 .

It is not a de Polignac number, because 674181 - 2³ = 674173 is a prime.

It is a super-2 number, since 2×674181² = 909040041522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 674181.

It is not an unprimeable number, because it can be changed into a prime (674183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1341 + ... + 1773.

It is an arithmetic number, because the mean of its divisors is an integer number (81809).

2⁶⁷⁴¹⁸¹ is an apocalyptic number.

It is an amenable number.

674181 is a deficient number, since it is larger than the sum of its proper divisors (307527).

674181 is a wasteful number, since it uses less digits than its factorization.

674181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 609 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 674181 is about 821.0852574489. The cubic root of 674181 is about 87.6850397059.

The spelling of 674181 in words is "six hundred seventy-four thousand, one hundred eighty-one".