6144999 has 16 divisors (see below), whose sum is σ = 9857280. Its totient is φ = 3326400.

The previous prime is 6144991. The next prime is 6145019. The reversal of 6144999 is 9994416.

It is not a de Polignac number, because 6144999 - 2³ = 6144991 is a prime.

It is a super-2 number, since 2×6144999² = 75522025420002, which contains 22 as substring.

It is an Ulam number.

6144999 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6144999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6144991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7302 + ... + 8099.

It is an arithmetic number, because the mean of its divisors is an integer number (616080).

Almost surely, 2^6144999 is an apocalyptic number.

6144999 is a deficient number, since it is larger than the sum of its proper divisors (3712281).

6144999 is a wasteful number, since it uses less digits than its factorization.

6144999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15430.

The product of its digits is 69984, while the sum is 42.

The square root of 6144999 is about 2478.9108495466. The cubic root of 6144999 is about 183.1642050894.

The spelling of 6144999 in words is "six million, one hundred forty-four thousand, nine hundred ninety-nine".