5813128 has 8 divisors (see below), whose sum is σ = 10899630. Its totient is φ = 2906560.

The previous prime is 5813123. The next prime is 5813131. The reversal of 5813128 is 8213185.

It can be written as a sum of positive squares in only one way, i.e., 4848804 + 964324 = 2202^2 + 982^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5813096 and 5813105.

It is not an unprimeable number, because it can be changed into a prime (5813123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363313 + ... + 363328.

Almost surely, 2^5813128 is an apocalyptic number.

It is an amenable number.

5813128 is a deficient number, since it is larger than the sum of its proper divisors (5086502).

5813128 is a wasteful number, since it uses less digits than its factorization.

5813128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726647 (or 726643 counting only the distinct ones).

The product of its digits is 1920, while the sum is 28.

The square root of 5813128 is about 2411.0429278634. The cubic root of 5813128 is about 179.8056338180.

The spelling of 5813128 in words is "five million, eight hundred thirteen thousand, one hundred twenty-eight".