4749149 has 4 divisors (see below), whose sum is σ = 4764636. Its totient is φ = 4733664.

The previous prime is 4749139. The next prime is 4749179. The reversal of 4749149 is 9419474.

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 1909924 + 2839225 = 1382^2 + 1685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4749149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4749139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7274 + ... + 7899.

It is an arithmetic number, because the mean of its divisors is an integer number (1191159).

Almost surely, 2^4749149 is an apocalyptic number.

It is an amenable number.

4749149 is a deficient number, since it is larger than the sum of its proper divisors (15487).

4749149 is a wasteful number, since it uses less digits than its factorization.

4749149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15486.

The product of its digits is 36288, while the sum is 38.

The square root of 4749149 is about 2179.2542302357. The cubic root of 4749149 is about 168.0887309998.

The spelling of 4749149 in words is "four million, seven hundred forty-nine thousand, one hundred forty-nine".