74135073 has 4 divisors (see below), whose sum is σ = 98846768. Its totient is φ = 49423380.

The previous prime is 74135059. The next prime is 74135123. The reversal of 74135073 is 37053147.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37053147 = 3 ⋅12351049.

It is not a de Polignac number, because 74135073 - 2⁵ = 74135041 is a prime.

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 74135073.

It is not an unprimeable number, because it can be changed into a prime (74135023) 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, 12355843 + ... + 12355848.

It is an arithmetic number, because the mean of its divisors is an integer number (24711692).

Almost surely, 2^74135073 is an apocalyptic number.

It is an amenable number.

74135073 is a deficient number, since it is larger than the sum of its proper divisors (24711695).

74135073 is a wasteful number, since it uses less digits than its factorization.

74135073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24711694.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 74135073 is about 8610.1726463527. The cubic root of 74135073 is about 420.0889324149.

The spelling of 74135073 in words is "seventy-four million, one hundred thirty-five thousand, seventy-three".