45545459 has 2 divisors, whose sum is σ = 45545460. Its totient is φ = 45545458.

The previous prime is 45545453. The next prime is 45545473. The reversal of 45545459 is 95454554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45545459 - 2⁴ = 45545443 is a prime.

It is equal to p_2749298 and since 45545459 and 2749298 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (45545453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22772729 + 22772730.

It is an arithmetic number, because the mean of its divisors is an integer number (22772730).

Almost surely, 2^45545459 is an apocalyptic number.

45545459 is a deficient number, since it is larger than the sum of its proper divisors (1).

45545459 is an equidigital number, since it uses as much as digits as its factorization.

45545459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360000, while the sum is 41.

The square root of 45545459 is about 6748.7375856526. The cubic root of 45545459 is about 357.1207029077.

It can be divided in two parts, 4554545 and 9, that added together give a palindrome (4554554).

The spelling of 45545459 in words is "forty-five million, five hundred forty-five thousand, four hundred fifty-nine".