81069003 has 12 divisors (see below), whose sum is σ = 117244608. Its totient is φ = 53979120.

The previous prime is 81068983. The next prime is 81069017. The reversal of 81069003 is 30096018.

It is not a de Polignac number, because 81069003 - 2¹⁴ = 81052619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (81069083) 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 11 ways as a sum of consecutive naturals, for example, 2758 + ... + 13028.

It is an arithmetic number, because the mean of its divisors is an integer number (9770384).

Almost surely, 2^81069003 is an apocalyptic number.

81069003 is a deficient number, since it is larger than the sum of its proper divisors (36175605).

81069003 is a wasteful number, since it uses less digits than its factorization.

81069003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11154 (or 11151 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 81069003 is about 9003.8326839186. The cubic root of 81069003 is about 432.7976998584.

The spelling of 81069003 in words is "eighty-one million, sixty-nine thousand, three".