81003254 has 16 divisors (see below), whose sum is σ = 122958000. Its totient is φ = 40020384.

The previous prime is 81003229. The next prime is 81003277. The reversal of 81003254 is 45230018.

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, 67649 + ... + 68835.

It is an arithmetic number, because the mean of its divisors is an integer number (7684875).

Almost surely, 2^81003254 is an apocalyptic number.

81003254 is a deficient number, since it is larger than the sum of its proper divisors (41954746).

81003254 is a wasteful number, since it uses less digits than its factorization.

81003254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 81003254 is about 9000.1807759622. The cubic root of 81003254 is about 432.6806649407.

The spelling of 81003254 in words is "eighty-one million, three thousand, two hundred fifty-four".