6638151 has 12 divisors (see below), whose sum is σ = 9584808. Its totient is φ = 4084704.

The previous prime is 6638147. The next prime is 6638153. The reversal of 6638151 is 1518366.

It is not a de Polignac number, because 6638151 - 2² = 6638147 is a prime.

6638151 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6638153) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 6040 + ... + 7053.

It is an arithmetic number, because the mean of its divisors is an integer number (798734).

Almost surely, 2^6638151 is an apocalyptic number.

6638151 is a deficient number, since it is larger than the sum of its proper divisors (2946657).

6638151 is a wasteful number, since it uses less digits than its factorization.

6638151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13122 (or 13109 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 6638151 is about 2576.4609447845. The cubic root of 6638151 is about 187.9384795687.

The spelling of 6638151 in words is "six million, six hundred thirty-eight thousand, one hundred fifty-one".