6121906 has 8 divisors (see below), whose sum is σ = 10494720. Its totient is φ = 2623668.

The previous prime is 6121897. The next prime is 6121919. The reversal of 6121906 is 6091216.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218626 + ... + 218653.

It is an arithmetic number, because the mean of its divisors is an integer number (1311840).

Almost surely, 2^6121906 is an apocalyptic number.

6121906 is a deficient number, since it is larger than the sum of its proper divisors (4372814).

6121906 is a wasteful number, since it uses less digits than its factorization.

6121906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437288.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 6121906 is about 2474.2485727994. The cubic root of 6121906 is about 182.9344724432.

The spelling of 6121906 in words is "six million, one hundred twenty-one thousand, nine hundred six".