5139820 has 24 divisors (see below), whose sum is σ = 12335904. Its totient is φ = 1762176.

The previous prime is 5139811. The next prime is 5139821. The reversal of 5139820 is 289315.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5139821) 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 7 ways as a sum of consecutive naturals, for example, 18217 + ... + 18496.

It is an arithmetic number, because the mean of its divisors is an integer number (513996).

Almost surely, 2^5139820 is an apocalyptic number.

It is an amenable number.

5139820 is an abundant number, since it is smaller than the sum of its proper divisors (7196084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5139820 is a wasteful number, since it uses less digits than its factorization.

5139820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36729 (or 36727 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 5139820 is about 2267.1171121052. The cubic root of 5139820 is about 172.5768893381.

The spelling of 5139820 in words is "five million, one hundred thirty-nine thousand, eight hundred twenty".