6650138 has 8 divisors (see below), whose sum is σ = 10882080. Its totient is φ = 3022780.

The previous prime is 6650131. The next prime is 6650153. The reversal of 6650138 is 8310566.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6650138.

It is not an unprimeable number, because it can be changed into a prime (6650131) 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, 151118 + ... + 151161.

It is an arithmetic number, because the mean of its divisors is an integer number (1360260).

Almost surely, 2^6650138 is an apocalyptic number.

6650138 is a deficient number, since it is larger than the sum of its proper divisors (4231942).

6650138 is a wasteful number, since it uses less digits than its factorization.

6650138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302292.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 6650138 is about 2578.7861485590. The cubic root of 6650138 is about 188.0515363464.

The spelling of 6650138 in words is "six million, six hundred fifty thousand, one hundred thirty-eight".