74258145 has 48 divisors (see below), whose sum is σ = 144668160. Its totient is φ = 34962048.

The previous prime is 74258123. The next prime is 74258153. The reversal of 74258145 is 54185247.

74258145 is a `hidden beast` number, since 74 + 2 + 581 + 4 + 5 = 666.

It is not a de Polignac number, because 74258145 - 2⁹ = 74257633 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 10696 + ... + 16214.

It is an arithmetic number, because the mean of its divisors is an integer number (3013920).

Almost surely, 2^74258145 is an apocalyptic number.

It is an amenable number.

74258145 is a deficient number, since it is larger than the sum of its proper divisors (70410015).

74258145 is a wasteful number, since it uses less digits than its factorization.

74258145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5566 (or 5563 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 74258145 is about 8617.3165776824. The cubic root of 74258145 is about 420.3212677976.

The spelling of 74258145 in words is "seventy-four million, two hundred fifty-eight thousand, one hundred forty-five".