45654509 has 2 divisors, whose sum is σ = 45654510. Its totient is φ = 45654508.

The previous prime is 45654481. The next prime is 45654523. The reversal of 45654509 is 90545654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45185284 + 469225 = 6722^2 + 685^2 .

It is a cyclic number.

It is not a de Polignac number, because 45654509 - 2²⁴ = 28877293 is a 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 (45654569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22827254 + 22827255.

It is an arithmetic number, because the mean of its divisors is an integer number (22827255).

Almost surely, 2^45654509 is an apocalyptic number.

It is an amenable number.

45654509 is a deficient number, since it is larger than the sum of its proper divisors (1).

45654509 is an equidigital number, since it uses as much as digits as its factorization.

45654509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 45654509 is about 6756.8120441522. The cubic root of 45654509 is about 357.4054950942.

The spelling of 45654509 in words is "forty-five million, six hundred fifty-four thousand, five hundred nine".