74147065 has 16 divisors (see below), whose sum is σ = 91518336. Its totient is φ = 57635200.

The previous prime is 74147039. The next prime is 74147069. The reversal of 74147065 is 56074147.

It is a happy number.

It is not a de Polignac number, because 74147065 - 2¹¹ = 74145017 is a prime.

It is a super-2 number, since 2×74147065² = 10995574496228450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74147065.

It is not an unprimeable number, because it can be changed into a prime (74147069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63174 + ... + 64336.

It is an arithmetic number, because the mean of its divisors is an integer number (5719896).

Almost surely, 2^74147065 is an apocalyptic number.

It is an amenable number.

74147065 is a deficient number, since it is larger than the sum of its proper divisors (17371271).

74147065 is a wasteful number, since it uses less digits than its factorization.

74147065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 74147065 is about 8610.8690037650. The cubic root of 74147065 is about 420.1115822201. Note that the first 3 decimals are identical.

The spelling of 74147065 in words is "seventy-four million, one hundred forty-seven thousand, sixty-five".