5111990 has 16 divisors (see below), whose sum is σ = 9909648. Its totient is φ = 1887456.

The previous prime is 5111963. The next prime is 5111999. The reversal of 5111990 is 991115.

It is a happy number.

It is a super-2 number, since 2×5111990² = 52264883520200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19532 + ... + 19791.

It is an arithmetic number, because the mean of its divisors is an integer number (619353).

Almost surely, 2^5111990 is an apocalyptic number.

5111990 is a deficient number, since it is larger than the sum of its proper divisors (4797658).

5111990 is a wasteful number, since it uses less digits than its factorization.

5111990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39343.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 5111990 is about 2260.9710303319. The cubic root of 5111990 is about 172.2648479684.

The spelling of 5111990 in words is "five million, one hundred eleven thousand, nine hundred ninety".