74145235 has 4 divisors (see below), whose sum is σ = 88974288. Its totient is φ = 59316184.

The previous prime is 74145233. The next prime is 74145259. The reversal of 74145235 is 53254147.

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 74145235 - 2¹ = 74145233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74145197 and 74145206.

It is not an unprimeable number, because it can be changed into a prime (74145233) 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, 7414519 + ... + 7414528.

It is an arithmetic number, because the mean of its divisors is an integer number (22243572).

Almost surely, 2^74145235 is an apocalyptic number.

74145235 is a deficient number, since it is larger than the sum of its proper divisors (14829053).

74145235 is a wasteful number, since it uses less digits than its factorization.

74145235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14829052.

The product of its digits is 16800, while the sum is 31.

The square root of 74145235 is about 8610.7627420572. The cubic root of 74145235 is about 420.1081259784.

The spelling of 74145235 in words is "seventy-four million, one hundred forty-five thousand, two hundred thirty-five".