5149819 has 4 divisors (see below), whose sum is σ = 5176696. Its totient is φ = 5122944.

The previous prime is 5149801. The next prime is 5149829. The reversal of 5149819 is 9189415.

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

It is a cyclic number.

It is not a de Polignac number, because 5149819 - 2⁹ = 5149307 is a prime.

It is a super-2 number, since 2×5149819² = 53041271465522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5149829) 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, 13149 + ... + 13534.

It is an arithmetic number, because the mean of its divisors is an integer number (1294174).

Almost surely, 2^5149819 is an apocalyptic number.

5149819 is a deficient number, since it is larger than the sum of its proper divisors (26877).

5149819 is a wasteful number, since it uses less digits than its factorization.

5149819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26876.

The product of its digits is 12960, while the sum is 37.

The square root of 5149819 is about 2269.3212641669. The cubic root of 5149819 is about 172.6887271413.

The spelling of 5149819 in words is "five million, one hundred forty-nine thousand, eight hundred nineteen".