81283348 has 6 divisors (see below), whose sum is σ = 142245866. Its totient is φ = 40641672.

The previous prime is 81283331. The next prime is 81283369. The reversal of 81283348 is 84338218.

It can be written as a sum of positive squares in only one way, i.e., 71436304 + 9847044 = 8452^2 + 3138^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160415 + ... + 10160422.

Almost surely, 2^81283348 is an apocalyptic number.

It is an amenable number.

81283348 is a deficient number, since it is larger than the sum of its proper divisors (60962518).

81283348 is a wasteful number, since it uses less digits than its factorization.

81283348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20320841 (or 20320839 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 81283348 is about 9015.7278131053. The cubic root of 81283348 is about 433.1788006508.

It can be divided in two parts, 8128 and 3348, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 81283348 in words is "eighty-one million, two hundred eighty-three thousand, three hundred forty-eight".