6136221 has 48 divisors (see below), whose sum is σ = 10852800. Its totient is φ = 3066336.

The previous prime is 6136219. The next prime is 6136231. The reversal of 6136221 is 1226316.

It is a happy number.

It is not a de Polignac number, because 6136221 - 2¹ = 6136219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6136211) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 322950 + ... + 322968.

It is an arithmetic number, because the mean of its divisors is an integer number (226100).

Almost surely, 2^6136221 is an apocalyptic number.

It is an amenable number.

6136221 is a deficient number, since it is larger than the sum of its proper divisors (4716579).

6136221 is a wasteful number, since it uses less digits than its factorization.

6136221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 42 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 6136221 is about 2477.1396811645. The cubic root of 6136221 is about 183.0769481412.

The spelling of 6136221 in words is "six million, one hundred thirty-six thousand, two hundred twenty-one".