81230482 has 4 divisors (see below), whose sum is σ = 121845726. Its totient is φ = 40615240.

The previous prime is 81230477. The next prime is 81230489. The reversal of 81230482 is 28403218.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42653961 + 38576521 = 6531^2 + 6211^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 81230482.

It is not an unprimeable number, because it can be changed into a prime (81230489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20307619 + ... + 20307622.

Almost surely, 2^81230482 is an apocalyptic number.

81230482 is a deficient number, since it is larger than the sum of its proper divisors (40615244).

81230482 is a wasteful number, since it uses less digits than its factorization.

81230482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40615243.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 81230482 is about 9012.7954597894. The cubic root of 81230482 is about 433.0848683446.

The spelling of 81230482 in words is "eighty-one million, two hundred thirty thousand, four hundred eighty-two".