81054482 has 8 divisors (see below), whose sum is σ = 123575052. Its totient is φ = 39862800.

The previous prime is 81054469. The next prime is 81054509. The reversal of 81054482 is 28445018.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 81018001 + 36481 = 9001^2 + 191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332069 + ... + 332312.

Almost surely, 2^81054482 is an apocalyptic number.

81054482 is a deficient number, since it is larger than the sum of its proper divisors (42520570).

81054482 is a wasteful number, since it uses less digits than its factorization.

81054482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664444.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 81054482 is about 9003.0262689831. The cubic root of 81054482 is about 432.7718575494.

The spelling of 81054482 in words is "eighty-one million, fifty-four thousand, four hundred eighty-two".