81074482 has 8 divisors (see below), whose sum is σ = 128012400. Its totient is φ = 38403684.

The previous prime is 81074453. The next prime is 81074491. The reversal of 81074482 is 28447018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066732 + ... + 1066807.

It is an arithmetic number, because the mean of its divisors is an integer number (16001550).

Almost surely, 2^81074482 is an apocalyptic number.

81074482 is a deficient number, since it is larger than the sum of its proper divisors (46937918).

81074482 is a wasteful number, since it uses less digits than its factorization.

81074482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133560.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 81074482 is about 9004.1369380968. The cubic root of 81074482 is about 432.8074497632.

The spelling of 81074482 in words is "eighty-one million, seventy-four thousand, four hundred eighty-two".