74370145 has 8 divisors (see below), whose sum is σ = 89418600. Its totient is φ = 59379840.

The previous prime is 74370133. The next prime is 74370151. The reversal of 74370145 is 54107347.

It can be written as a sum of positive squares in 4 ways, for example, as 134689 + 74235456 = 367^2 + 8616^2 .

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

It is not a de Polignac number, because 74370145 - 2⁵ = 74370113 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 7 ways as a sum of consecutive naturals, for example, 11670 + ... + 16879.

It is an arithmetic number, because the mean of its divisors is an integer number (11177325).

Almost surely, 2^74370145 is an apocalyptic number.

It is an amenable number.

74370145 is a deficient number, since it is larger than the sum of its proper divisors (15048455).

74370145 is a wasteful number, since it uses less digits than its factorization.

74370145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29075.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 74370145 is about 8623.8126718987. The cubic root of 74370145 is about 420.5324784525.

The spelling of 74370145 in words is "seventy-four million, three hundred seventy thousand, one hundred forty-five".