45452009 has 8 divisors (see below), whose sum is σ = 48054240. Its totient is φ = 42870816.

The previous prime is 45451957. The next prime is 45452023. The reversal of 45452009 is 90025454.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45452009 - 2⁸ = 45451753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45452059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707 + ... + 9560.

It is an arithmetic number, because the mean of its divisors is an integer number (6006780).

Almost surely, 2^45452009 is an apocalyptic number.

It is an amenable number.

45452009 is a deficient number, since it is larger than the sum of its proper divisors (2602231).

45452009 is a wasteful number, since it uses less digits than its factorization.

45452009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10519.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 45452009 is about 6741.8105135045. The cubic root of 45452009 is about 356.8762893679.

The spelling of 45452009 in words is "forty-five million, four hundred fifty-two thousand, nine".