81083036 has 24 divisors (see below), whose sum is σ = 145622400. Its totient is φ = 39482352.

The previous prime is 81083017. The next prime is 81083053. The reversal of 81083036 is 63038018.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102635 + ... + 103421.

It is an arithmetic number, because the mean of its divisors is an integer number (6067600).

Almost surely, 2^81083036 is an apocalyptic number.

81083036 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

81083036 is a deficient number, since it is larger than the sum of its proper divisors (64539364).

81083036 is a wasteful number, since it uses less digits than its factorization.

81083036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433 (or 1431 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 81083036 is about 9004.6119294504. The cubic root of 81083036 is about 432.8226707659.

The spelling of 81083036 in words is "eighty-one million, eighty-three thousand, thirty-six".