6291481 has 16 divisors (see below), whose sum is σ = 7536640. Its totient is φ = 5138640.

The previous prime is 6291469. The next prime is 6291487. The reversal of 6291481 is 1841926.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6291481 - 2⁵ = 6291449 is a prime.

It is a super-2 number, since 2×6291481² = 79165466346722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an Ulam number.

It is a d-powerful number, because it can be written as 6 + 2²¹ + 9 + 1 + 4¹¹ + 8 + 1 .

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (6291487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16960 + ... + 17326.

It is an arithmetic number, because the mean of its divisors is an integer number (471040).

Almost surely, 2^6291481 is an apocalyptic number.

It is an amenable number.

6291481 is a deficient number, since it is larger than the sum of its proper divisors (1245159).

6291481 is a wasteful number, since it uses less digits than its factorization.

6291481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its digits is 3456, while the sum is 31.

The square root of 6291481 is about 2508.2824801047. The cubic root of 6291481 is about 184.6081895210.

The spelling of 6291481 in words is "six million, two hundred ninety-one thousand, four hundred eighty-one".