674675145 has 12 divisors (see below), whose sum is σ = 1169436996. Its totient is φ = 359826720.

The previous prime is 674675081. The next prime is 674675171. The reversal of 674675145 is 541576476.

674675145 is a `hidden beast` number, since 6 + 74 + 67 + 514 + 5 = 666.

674675145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 317124864 + 357550281 = 17808^2 + 18909^2 .

It is not a de Polignac number, because 674675145 - 2⁶ = 674675081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 14992781 = 674675145 / (6 + 7 + 4 + 6 + 7 + 5 + 1 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 674675145.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7496346 + ... + 7496435.

It is an arithmetic number, because the mean of its divisors is an integer number (97453083).

Almost surely, 2^674675145 is an apocalyptic number.

It is an amenable number.

674675145 is a deficient number, since it is larger than the sum of its proper divisors (494761851).

674675145 is a wasteful number, since it uses less digits than its factorization.

674675145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14992792 (or 14992789 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 674675145 is about 25974.5095237619. The cubic root of 674675145 is about 877.0645756557.

The spelling of 674675145 in words is "six hundred seventy-four million, six hundred seventy-five thousand, one hundred forty-five".