74120745 has 8 divisors (see below), whose sum is σ = 118593216. Its totient is φ = 39531056.

The previous prime is 74120689. The next prime is 74120747. The reversal of 74120745 is 54702147.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74120745 - 2⁷ = 74120617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74120747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2470677 + ... + 2470706.

It is an arithmetic number, because the mean of its divisors is an integer number (14824152).

Almost surely, 2^74120745 is an apocalyptic number.

It is an amenable number.

74120745 is a deficient number, since it is larger than the sum of its proper divisors (44472471).

74120745 is a wasteful number, since it uses less digits than its factorization.

74120745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4941391.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 74120745 is about 8609.3405670818. The cubic root of 74120745 is about 420.0618673035.

The spelling of 74120745 in words is "seventy-four million, one hundred twenty thousand, seven hundred forty-five".