74453145 has 32 divisors (see below), whose sum is σ = 129088512. Its totient is φ = 36425472.

The previous prime is 74453131. The next prime is 74453201. The reversal of 74453145 is 54135447.

It is not a de Polignac number, because 74453145 - 2⁴ = 74453129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32632 + ... + 34838.

It is an arithmetic number, because the mean of its divisors is an integer number (4034016).

Almost surely, 2^74453145 is an apocalyptic number.

It is an amenable number.

74453145 is a deficient number, since it is larger than the sum of its proper divisors (54635367).

74453145 is a wasteful number, since it uses less digits than its factorization.

74453145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401.

The product of its digits is 33600, while the sum is 33.

The square root of 74453145 is about 8628.6235866446. The cubic root of 74453145 is about 420.6888638719.

The spelling of 74453145 in words is "seventy-four million, four hundred fifty-three thousand, one hundred forty-five".