674643135 has 24 divisors (see below), whose sum is σ = 1090469520. Its totient is φ = 356166400.

The previous prime is 674643077. The next prime is 674643139. The reversal of 674643135 is 531346476.

It is not a de Polignac number, because 674643135 - 2¹⁸ = 674380991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 674643093 and 674643102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674643139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150811 + ... + 155219.

It is an arithmetic number, because the mean of its divisors is an integer number (45436230).

Almost surely, 2^674643135 is an apocalyptic number.

674643135 is a deficient number, since it is larger than the sum of its proper divisors (415826385).

674643135 is a wasteful number, since it uses less digits than its factorization.

674643135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4619 (or 4518 counting only the distinct ones).

The product of its digits is 181440, while the sum is 39.

The square root of 674643135 is about 25973.8933354243. The cubic root of 674643135 is about 877.0507046437.

The spelling of 674643135 in words is "six hundred seventy-four million, six hundred forty-three thousand, one hundred thirty-five".