4919138 has 16 divisors (see below), whose sum is σ = 8877120. Its totient is φ = 1997136.

The previous prime is 4919107. The next prime is 4919143. The reversal of 4919138 is 8319194.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4919098 and 4919107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8981 + ... + 9512.

It is an arithmetic number, because the mean of its divisors is an integer number (554820).

Almost surely, 2^4919138 is an apocalyptic number.

4919138 is a deficient number, since it is larger than the sum of its proper divisors (3957982).

4919138 is a wasteful number, since it uses less digits than its factorization.

4919138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18521.

The product of its digits is 7776, while the sum is 35.

The square root of 4919138 is about 2217.9129829639. The cubic root of 4919138 is about 170.0707663855.

The spelling of 4919138 in words is "four million, nine hundred nineteen thousand, one hundred thirty-eight".