81067354 has 12 divisors (see below), whose sum is σ = 125941374. Its totient is φ = 39135152.

The previous prime is 81067321. The next prime is 81067367. The reversal of 81067354 is 45376018.

It can be written as a sum of positive squares in 3 ways, for example, as 77845329 + 3222025 = 8823^2 + 1795^2 .

It is a super-2 number, since 2×81067354² = 13143831769122632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22417 + ... + 25780.

Almost surely, 2^81067354 is an apocalyptic number.

81067354 is a deficient number, since it is larger than the sum of its proper divisors (44874020).

81067354 is a wasteful number, since it uses less digits than its factorization.

81067354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48257 (or 48228 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 81067354 is about 9003.7411113381. The cubic root of 81067354 is about 432.7947653696.

The spelling of 81067354 in words is "eighty-one million, sixty-seven thousand, three hundred fifty-four".