45065231 has 2 divisors, whose sum is σ = 45065232. Its totient is φ = 45065230.

The previous prime is 45065221. The next prime is 45065233. The reversal of 45065231 is 13256054.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45065231 is a prime.

It is a super-2 number, since 2×45065231² = 4061750090166722, which contains 22 as substring.

Together with 45065233, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_2721923 and since 45065231 and 2721923 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45065231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45065233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22532615 + 22532616.

It is an arithmetic number, because the mean of its divisors is an integer number (22532616).

Almost surely, 2^45065231 is an apocalyptic number.

45065231 is a deficient number, since it is larger than the sum of its proper divisors (1).

45065231 is an equidigital number, since it uses as much as digits as its factorization.

45065231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 45065231 is about 6713.0642034767. The cubic root of 45065231 is about 355.8611139210.

The spelling of 45065231 in words is "forty-five million, sixty-five thousand, two hundred thirty-one".