4991146 has 8 divisors (see below), whose sum is σ = 7498944. Its totient is φ = 2491500.

The previous prime is 4991143. The next prime is 4991153. The reversal of 4991146 is 6411994.

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

It is not an unprimeable number, because it can be changed into a prime (4991143) 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, 160 + ... + 3163.

It is an arithmetic number, because the mean of its divisors is an integer number (937368).

Almost surely, 2^4991146 is an apocalyptic number.

4991146 is a deficient number, since it is larger than the sum of its proper divisors (2507798).

4991146 is a wasteful number, since it uses less digits than its factorization.

4991146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076.

The product of its digits is 7776, while the sum is 34.

The square root of 4991146 is about 2234.0872856717. The cubic root of 4991146 is about 170.8966008507.

The spelling of 4991146 in words is "four million, nine hundred ninety-one thousand, one hundred forty-six".