81088303 has 2 divisors, whose sum is σ = 81088304. Its totient is φ = 81088302.

The previous prime is 81088289. The next prime is 81088307. The reversal of 81088303 is 30388018.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-81088303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (81088307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40544151 + 40544152.

It is an arithmetic number, because the mean of its divisors is an integer number (40544152).

Almost surely, 2^81088303 is an apocalyptic number.

81088303 is a deficient number, since it is larger than the sum of its proper divisors (1).

81088303 is an equidigital number, since it uses as much as digits as its factorization.

81088303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 81088303 is about 9004.9043859444. The cubic root of 81088303 is about 432.8320423425.

The spelling of 81088303 in words is "eighty-one million, eighty-eight thousand, three hundred three".