74230231 has 2 divisors, whose sum is σ = 74230232. Its totient is φ = 74230230.

The previous prime is 74230187. The next prime is 74230237. The reversal of 74230231 is 13203247.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74230231 - 2¹⁷ = 74099159 is a prime.

It is a super-2 number, since 2×74230231² = 11020254388626722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74230237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37115115 + 37115116.

It is an arithmetic number, because the mean of its divisors is an integer number (37115116).

Almost surely, 2^74230231 is an apocalyptic number.

74230231 is a deficient number, since it is larger than the sum of its proper divisors (1).

74230231 is an equidigital number, since it uses as much as digits as its factorization.

74230231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 74230231 is about 8615.6967797155. The cubic root of 74230231 is about 420.2685942566.

Adding to 74230231 its reverse (13203247), we get a palindrome (87433478).

The spelling of 74230231 in words is "seventy-four million, two hundred thirty thousand, two hundred thirty-one".