4545999 has 6 divisors (see below), whose sum is σ = 6566456. Its totient is φ = 3030660.

The previous prime is 4545979. The next prime is 4546001. The reversal of 4545999 is 9995454.

4545999 is a `hidden beast` number, since 4 + 54 + 599 + 9 = 666.

It is not a de Polignac number, because 4545999 - 2⁵ = 4545967 is a prime.

It is a super-2 number, since 2×4545999² = 41332213816002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252547 + ... + 252564.

Almost surely, 2^4545999 is an apocalyptic number.

4545999 is a deficient number, since it is larger than the sum of its proper divisors (2020457).

4545999 is a wasteful number, since it uses less digits than its factorization.

4545999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505117 (or 505114 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 4545999 is about 2132.1348456418. The cubic root of 4545999 is about 165.6569948395.

The spelling of 4545999 in words is "four million, five hundred forty-five thousand, nine hundred ninety-nine".