81014307 has 16 divisors (see below), whose sum is σ = 118160640. Its totient is φ = 48965600.

The previous prime is 81014291. The next prime is 81014321. The reversal of 81014307 is 70341018.

It is a cyclic number.

It is not a de Polignac number, because 81014307 - 2⁴ = 81014291 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (81014327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9682 + ... + 15992.

It is an arithmetic number, because the mean of its divisors is an integer number (7385040).

Almost surely, 2^81014307 is an apocalyptic number.

81014307 is a deficient number, since it is larger than the sum of its proper divisors (37146333).

81014307 is a wasteful number, since it uses less digits than its factorization.

81014307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6714.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 81014307 is about 9000.7947982387. The cubic root of 81014307 is about 432.7003439933.

Subtracting from 81014307 its reverse (70341018), we obtain a square (10673289 = 3267²).

The spelling of 81014307 in words is "eighty-one million, fourteen thousand, three hundred seven".