45027431 has 2 divisors, whose sum is σ = 45027432. Its totient is φ = 45027430.

The previous prime is 45027427. The next prime is 45027439. The reversal of 45027431 is 13472054.

45027431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45027431 - 2² = 45027427 is a prime.

It is a super-2 number, since 2×45027431² = 4054939084919522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45027431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45027439) 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 as a sum of consecutive naturals, namely, 22513715 + 22513716.

It is an arithmetic number, because the mean of its divisors is an integer number (22513716).

Almost surely, 2^45027431 is an apocalyptic number.

45027431 is a deficient number, since it is larger than the sum of its proper divisors (1).

45027431 is an equidigital number, since it uses as much as digits as its factorization.

45027431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 45027431 is about 6710.2482070338. The cubic root of 45027431 is about 355.7615892058.

Adding to 45027431 its reverse (13472054), we get a palindrome (58499485).

The spelling of 45027431 in words is "forty-five million, twenty-seven thousand, four hundred thirty-one".