74271331 has 4 divisors (see below), whose sum is σ = 74290000. Its totient is φ = 74252664.

The previous prime is 74271311. The next prime is 74271389. The reversal of 74271331 is 13317247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13317247 = 1223 ⋅10889.

It is a cyclic number.

It is not a de Polignac number, because 74271331 - 2⁷ = 74271203 is a prime.

It is a super-2 number, since 2×74271331² = 11032461217023122, which contains 22 as substring.

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 74271331.

It is not an unprimeable number, because it can be changed into a prime (74271311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711 + ... + 12208.

It is an arithmetic number, because the mean of its divisors is an integer number (18572500).

Almost surely, 2^74271331 is an apocalyptic number.

74271331 is a deficient number, since it is larger than the sum of its proper divisors (18669).

74271331 is a wasteful number, since it uses less digits than its factorization.

74271331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18668.

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

The square root of 74271331 is about 8618.0816310824. The cubic root of 74271331 is about 420.3461451055.

Adding to 74271331 its reverse (13317247), we get a palindrome (87588578).

The spelling of 74271331 in words is "seventy-four million, two hundred seventy-one thousand, three hundred thirty-one".