45454789 has 2 divisors, whose sum is σ = 45454790. Its totient is φ = 45454788.

The previous prime is 45454733. The next prime is 45454817. The reversal of 45454789 is 98745454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45454564 + 225 = 6742^2 + 15^2 .

It is a cyclic number.

It is not a de Polignac number, because 45454789 - 2¹¹ = 45452741 is a prime.

It is a super-2 number, since 2×45454789² = 4132275686069042, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45454709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22727394 + 22727395.

It is an arithmetic number, because the mean of its divisors is an integer number (22727395).

Almost surely, 2^45454789 is an apocalyptic number.

It is an amenable number.

45454789 is a deficient number, since it is larger than the sum of its proper divisors (1).

45454789 is an equidigital number, since it uses as much as digits as its factorization.

45454789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 46.

The square root of 45454789 is about 6742.0166864225. The cubic root of 45454789 is about 356.8835651436.

The spelling of 45454789 in words is "forty-five million, four hundred fifty-four thousand, seven hundred eighty-nine".