4491683137 has 4 divisors (see below), whose sum is σ = 4491868356. Its totient is φ = 4491497920.

The previous prime is 4491683123. The next prime is 4491683143. The reversal of 4491683137 is 7313861944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1145754801 + 3345928336 = 33849^2 + 57844^2 .

It is a cyclic number.

It is not a de Polignac number, because 4491683137 - 2¹⁹ = 4491158849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4491683177) 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, 49564 + ... + 106957.

It is an arithmetic number, because the mean of its divisors is an integer number (1122967089).

Almost surely, 2^4491683137 is an apocalyptic number.

It is an amenable number.

4491683137 is a deficient number, since it is larger than the sum of its proper divisors (185219).

4491683137 is a wasteful number, since it uses less digits than its factorization.

4491683137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185218.

The product of its digits is 435456, while the sum is 46.

The square root of 4491683137 is about 67020.0204192747. The cubic root of 4491683137 is about 1649.9458980730.

The spelling of 4491683137 in words is "four billion, four hundred ninety-one million, six hundred eighty-three thousand, one hundred thirty-seven".