74665151 has 4 divisors (see below), whose sum is σ = 81452904. Its totient is φ = 67877400.

The previous prime is 74665103. The next prime is 74665177. The reversal of 74665151 is 15156647.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74665151 - 2¹⁰ = 74664127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74665651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3393860 + ... + 3393881.

It is an arithmetic number, because the mean of its divisors is an integer number (20363226).

Almost surely, 2^74665151 is an apocalyptic number.

74665151 is a deficient number, since it is larger than the sum of its proper divisors (6787753).

74665151 is a wasteful number, since it uses less digits than its factorization.

74665151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787752.

The product of its digits is 25200, while the sum is 35.

The square root of 74665151 is about 8640.8998952655. The cubic root of 74665151 is about 421.0877905698.

The spelling of 74665151 in words is "seventy-four million, six hundred sixty-five thousand, one hundred fifty-one".