81614024 has 16 divisors (see below), whose sum is σ = 154382220. Its totient is φ = 40445440.

The previous prime is 81614021. The next prime is 81614047. The reversal of 81614024 is 42041618.

It can be written as a sum of positive squares in 2 ways, for example, as 74269924 + 7344100 = 8618^2 + 2710^2 .

It is a junction number, because it is equal to n+sod(n) for n = 81613984 and 81614002.

It is not an unprimeable number, because it can be changed into a prime (81614021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44237 + ... + 46044.

Almost surely, 2^81614024 is an apocalyptic number.

It is an amenable number.

81614024 is a deficient number, since it is larger than the sum of its proper divisors (72768196).

81614024 is a wasteful number, since it uses less digits than its factorization.

81614024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90400 (or 90396 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 81614024 is about 9034.0480406073. The cubic root of 81614024 is about 433.7654235754.

The spelling of 81614024 in words is "eighty-one million, six hundred fourteen thousand, twenty-four".