81056954 has 8 divisors (see below), whose sum is σ = 132638688. Its totient is φ = 36844060.

The previous prime is 81056917. The next prime is 81056977. The reversal of 81056954 is 45965018.

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, 1842182 + ... + 1842225.

It is an arithmetic number, because the mean of its divisors is an integer number (16579836).

Almost surely, 2^81056954 is an apocalyptic number.

81056954 is a deficient number, since it is larger than the sum of its proper divisors (51581734).

81056954 is a wasteful number, since it uses less digits than its factorization.

81056954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684420.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 81056954 is about 9003.1635551066. The cubic root of 81056954 is about 432.7762570641.

The spelling of 81056954 in words is "eighty-one million, fifty-six thousand, nine hundred fifty-four".