45811609 has 2 divisors, whose sum is σ = 45811610. Its totient is φ = 45811608.

The previous prime is 45811573. The next prime is 45811613. The reversal of 45811609 is 90611854.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35105625 + 10705984 = 5925^2 + 3272^2 .

It is a cyclic number.

It is not a de Polignac number, because 45811609 - 2¹⁹ = 45287321 is a prime.

It is not a weakly prime, because it can be changed into another prime (45811709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22905804 + 22905805.

It is an arithmetic number, because the mean of its divisors is an integer number (22905805).

Almost surely, 2^45811609 is an apocalyptic number.

It is an amenable number.

45811609 is a deficient number, since it is larger than the sum of its proper divisors (1).

45811609 is an equidigital number, since it uses as much as digits as its factorization.

45811609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 45811609 is about 6768.4273653486. The cubic root of 45811609 is about 357.8149772678.

The spelling of 45811609 in words is "forty-five million, eight hundred eleven thousand, six hundred nine".