74988145 has 8 divisors (see below), whose sum is σ = 90032256. Its totient is φ = 59959536.

The previous prime is 74988131. The next prime is 74988149. The reversal of 74988145 is 54188947.

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 74988145 - 2²³ = 66599537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74988095 and 74988104.

It is not an unprimeable number, because it can be changed into a prime (74988149) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17154 + ... + 21076.

It is an arithmetic number, because the mean of its divisors is an integer number (11254032).

Almost surely, 2^74988145 is an apocalyptic number.

It is an amenable number.

74988145 is a deficient number, since it is larger than the sum of its proper divisors (15044111).

74988145 is a wasteful number, since it uses less digits than its factorization.

74988145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7751.

The product of its digits is 322560, while the sum is 46.

The square root of 74988145 is about 8659.5695620510. The cubic root of 74988145 is about 421.6941117150.

The spelling of 74988145 in words is "seventy-four million, nine hundred eighty-eight thousand, one hundred forty-five".