6121994 has 4 divisors (see below), whose sum is σ = 9182994. Its totient is φ = 3060996.

The previous prime is 6121957. The next prime is 6122029. The reversal of 6121994 is 4991216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4264225 + 1857769 = 2065^2 + 1363^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6121994.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1530497 + ... + 1530500.

Almost surely, 2^6121994 is an apocalyptic number.

6121994 is a deficient number, since it is larger than the sum of its proper divisors (3061000).

6121994 is a wasteful number, since it uses less digits than its factorization.

6121994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060999.

The product of its digits is 3888, while the sum is 32.

The square root of 6121994 is about 2474.2663559124. The cubic root of 6121994 is about 182.9353489761.

The spelling of 6121994 in words is "six million, one hundred twenty-one thousand, nine hundred ninety-four".