5681091 has 32 divisors (see below), whose sum is σ = 8716288. Its totient is φ = 3265920.

The previous prime is 5681089. The next prime is 5681119. The reversal of 5681091 is 1901865.

It is a happy number.

It is not a de Polignac number, because 5681091 - 2¹ = 5681089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5681191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44670 + ... + 44796.

It is an arithmetic number, because the mean of its divisors is an integer number (272384).

Almost surely, 2^5681091 is an apocalyptic number.

5681091 is a deficient number, since it is larger than the sum of its proper divisors (3035197).

5681091 is a wasteful number, since it uses less digits than its factorization.

5681091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 5681091 is about 2383.5039332881. The cubic root of 5681091 is about 178.4338510003.

The spelling of 5681091 in words is "five million, six hundred eighty-one thousand, ninety-one".