45075409 has 2 divisors, whose sum is σ = 45075410. Its totient is φ = 45075408.

The previous prime is 45075341. The next prime is 45075419. The reversal of 45075409 is 90457054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34480384 + 10595025 = 5872^2 + 3255^2 .

It is a cyclic number.

It is not a de Polignac number, because 45075409 - 2¹¹ = 45073361 is a prime.

It is a super-3 number, since 3×45075409³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (45075419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22537704 + 22537705.

It is an arithmetic number, because the mean of its divisors is an integer number (22537705).

Almost surely, 2^45075409 is an apocalyptic number.

It is an amenable number.

45075409 is a deficient number, since it is larger than the sum of its proper divisors (1).

45075409 is an equidigital number, since it uses as much as digits as its factorization.

45075409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 45075409 is about 6713.8222347631. The cubic root of 45075409 is about 355.8879023615.

The spelling of 45075409 in words is "forty-five million, seventy-five thousand, four hundred nine".