8051481 has 10 divisors (see below), whose sum is σ = 12027642. Its totient is φ = 5367600.

The previous prime is 8051453. The next prime is 8051501. The reversal of 8051481 is 1841508.

It can be written as a sum of positive squares in only one way, i.e., 7241481 + 810000 = 2691^2 + 900^2 .

It is not a de Polignac number, because 8051481 - 2¹⁰ = 8050457 is a prime.

It is a super-2 number, since 2×8051481² = 129652692586722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8051401) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 49620 + ... + 49781.

Almost surely, 2^8051481 is an apocalyptic number.

8051481 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8051481 is a deficient number, since it is larger than the sum of its proper divisors (3976161).

8051481 is an equidigital number, since it uses as much as digits as its factorization.

8051481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99413 (or 99404 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 8051481 is about 2837.5131717756. The cubic root of 8051481 is about 200.4280913685.

Adding to 8051481 its sum of digits (27), we get a palindrome (8051508).

Adding to 8051481 its reverse (1841508), we get a palindrome (9892989).

The spelling of 8051481 in words is "eight million, fifty-one thousand, four hundred eighty-one".