81127482 has 16 divisors (see below), whose sum is σ = 162442560. Its totient is φ = 27011232.

The previous prime is 81127481. The next prime is 81127517. The reversal of 81127482 is 28472118.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (81127481) 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, 1843 + ... + 12870.

It is an arithmetic number, because the mean of its divisors is an integer number (10152660).

Almost surely, 2^81127482 is an apocalyptic number.

81127482 is an abundant number, since it is smaller than the sum of its proper divisors (81315078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81127482 is a wasteful number, since it uses less digits than its factorization.

81127482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15637.

The product of its digits is 7168, while the sum is 33.

The square root of 81127482 is about 9007.0795488882. The cubic root of 81127482 is about 432.9017408297.

The spelling of 81127482 in words is "eighty-one million, one hundred twenty-seven thousand, four hundred eighty-two".