6101999 has 4 divisors (see below), whose sum is σ = 6107664. Its totient is φ = 6096336.

The previous prime is 6101993. The next prime is 6102007. The reversal of 6101999 is 9991016.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6101999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6101993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662 + ... + 3555.

It is an arithmetic number, because the mean of its divisors is an integer number (1526916).

Almost surely, 2^6101999 is an apocalyptic number.

6101999 is a deficient number, since it is larger than the sum of its proper divisors (5665).

6101999 is a wasteful number, since it uses less digits than its factorization.

6101999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5664.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 6101999 is about 2470.2224596178. Note that the first 3 decimals coincide. The cubic root of 6101999 is about 182.7359704853.

The spelling of 6101999 in words is "six million, one hundred one thousand, nine hundred ninety-nine".