6645146 has 8 divisors (see below), whose sum is σ = 10088064. Its totient is φ = 3282460.

The previous prime is 6645139. The next prime is 6645151. The reversal of 6645146 is 6415466.

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

It is a super-2 number, since 2×6645146² = 88315930722632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19850 + ... + 20181.

It is an arithmetic number, because the mean of its divisors is an integer number (1261008).

Almost surely, 2^6645146 is an apocalyptic number.

6645146 is a deficient number, since it is larger than the sum of its proper divisors (3442918).

6645146 is a wasteful number, since it uses less digits than its factorization.

6645146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40116.

The product of its digits is 17280, while the sum is 32.

The square root of 6645146 is about 2577.8180696085. The cubic root of 6645146 is about 188.0044702423.

The spelling of 6645146 in words is "six million, six hundred forty-five thousand, one hundred forty-six".