74153 has 4 divisors (see below), whose sum is σ = 76740. Its totient is φ = 71568.

The previous prime is 74149. The next prime is 74159. The reversal of 74153 is 35147.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35147 = 7 ⋅5021.

It can be written as a sum of positive squares in 2 ways, for example, as 35344 + 38809 = 188^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 74153 - 2² = 74149 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 (74159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250 + ... + 1307.

It is an arithmetic number, because the mean of its divisors is an integer number (19185).

2⁷⁴¹⁵³ is an apocalyptic number.

It is an amenable number.

74153 is a deficient number, since it is larger than the sum of its proper divisors (2587).

74153 is a wasteful number, since it uses less digits than its factorization.

74153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586.

The product of its digits is 420, while the sum is 20.

The square root of 74153 is about 272.3104845576. The cubic root of 74153 is about 42.0122791006.

The spelling of 74153 in words is "seventy-four thousand, one hundred fifty-three".