74122331 has 2 divisors, whose sum is σ = 74122332. Its totient is φ = 74122330.

The previous prime is 74122327. The next prime is 74122339. The reversal of 74122331 is 13322147.

It is a weak prime.

It is an emirp because it is prime and its reverse (13322147) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74122331 - 2² = 74122327 is a prime.

It is a super-2 number, since 2×74122331² = 10988239905747122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 74122297 and 74122306.

It is not a weakly prime, because it can be changed into another prime (74122339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37061165 + 37061166.

It is an arithmetic number, because the mean of its divisors is an integer number (37061166).

Almost surely, 2^74122331 is an apocalyptic number.

74122331 is a deficient number, since it is larger than the sum of its proper divisors (1).

74122331 is an equidigital number, since it uses as much as digits as its factorization.

74122331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 23.

The square root of 74122331 is about 8609.4326758504. The cubic root of 74122331 is about 420.0648633760.

Adding to 74122331 its reverse (13322147), we get a palindrome (87444478).

The spelling of 74122331 in words is "seventy-four million, one hundred twenty-two thousand, three hundred thirty-one".