5145999 has 8 divisors (see below), whose sum is σ = 6924720. Its totient is φ = 3398976.

The previous prime is 5145991. The next prime is 5146003. The reversal of 5145999 is 9995415.

It is a happy number.

5145999 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 5145999 - 2³ = 5145991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5145999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145991) 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, 7542 + ... + 8195.

It is an arithmetic number, because the mean of its divisors is an integer number (865590).

Almost surely, 2^5145999 is an apocalyptic number.

5145999 is a deficient number, since it is larger than the sum of its proper divisors (1778721).

5145999 is a wasteful number, since it uses less digits than its factorization.

5145999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15849.

The product of its digits is 72900, while the sum is 42.

The square root of 5145999 is about 2268.4794466779. The cubic root of 5145999 is about 172.6460179307.

The spelling of 5145999 in words is "five million, one hundred forty-five thousand, nine hundred ninety-nine".