74311273 has 4 divisors (see below), whose sum is σ = 74550528. Its totient is φ = 74072020.

The previous prime is 74311243. The next prime is 74311291. The reversal of 74311273 is 37211347.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74311273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74311213) 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, 119161 + ... + 119782.

It is an arithmetic number, because the mean of its divisors is an integer number (18637632).

Almost surely, 2^74311273 is an apocalyptic number.

It is an amenable number.

74311273 is a deficient number, since it is larger than the sum of its proper divisors (239255).

74311273 is a wasteful number, since it uses less digits than its factorization.

74311273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239254.

The product of its digits is 3528, while the sum is 28.

The square root of 74311273 is about 8620.3986566748. The cubic root of 74311273 is about 420.4214835377.

The spelling of 74311273 in words is "seventy-four million, three hundred eleven thousand, two hundred seventy-three".