74149965 has 16 divisors (see below), whose sum is σ = 131822400. Its totient is φ = 39546576.

The previous prime is 74149963. The next prime is 74149991. The reversal of 74149965 is 56994147.

It is not a de Polignac number, because 74149965 - 2¹ = 74149963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 74149965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74149963) 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 15 ways as a sum of consecutive naturals, for example, 274495 + ... + 274764.

It is an arithmetic number, because the mean of its divisors is an integer number (8238900).

Almost surely, 2^74149965 is an apocalyptic number.

It is an amenable number.

74149965 is a deficient number, since it is larger than the sum of its proper divisors (57672435).

74149965 is a wasteful number, since it uses less digits than its factorization.

74149965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549273 (or 549267 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 74149965 is about 8611.0373939497. The cubic root of 74149965 is about 420.1170592079.

The spelling of 74149965 in words is "seventy-four million, one hundred forty-nine thousand, nine hundred sixty-five".