45340231 has 2 divisors, whose sum is σ = 45340232. Its totient is φ = 45340230.

The previous prime is 45340181. The next prime is 45340237. The reversal of 45340231 is 13204354.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45340231 - 2¹⁹ = 44815943 is a prime.

It is a super-2 number, since 2×45340231² = 4111473094266722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45340237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22670115 + 22670116.

It is an arithmetic number, because the mean of its divisors is an integer number (22670116).

Almost surely, 2^45340231 is an apocalyptic number.

45340231 is a deficient number, since it is larger than the sum of its proper divisors (1).

45340231 is an equidigital number, since it uses as much as digits as its factorization.

45340231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 45340231 is about 6733.5155008361. The cubic root of 45340231 is about 356.5834994992.

Adding to 45340231 its reverse (13204354), we get a palindrome (58544585).

The spelling of 45340231 in words is "forty-five million, three hundred forty thousand, two hundred thirty-one".