45145999 has 8 divisors (see below), whose sum is σ = 47860848. Its totient is φ = 42437760.

The previous prime is 45145967. The next prime is 45146009. The reversal of 45145999 is 99954154.

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 45145999 - 2⁵ = 45145967 is a prime.

It is a super-2 number, since 2×45145999² = 4076322451416002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45145939) 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, 23329 + ... + 25189.

It is an arithmetic number, because the mean of its divisors is an integer number (5982606).

Almost surely, 2^45145999 is an apocalyptic number.

45145999 is a deficient number, since it is larger than the sum of its proper divisors (2714849).

45145999 is a wasteful number, since it uses less digits than its factorization.

45145999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305.

The product of its digits is 291600, while the sum is 46.

The square root of 45145999 is about 6719.0772431934. The cubic root of 45145999 is about 356.0735839772.

The spelling of 45145999 in words is "forty-five million, one hundred forty-five thousand, nine hundred ninety-nine".