981482091 has 16 divisors (see below), whose sum is σ = 1345148928. Its totient is φ = 636098400.

The previous prime is 981482087. The next prime is 981482123. The reversal of 981482091 is 190284189.

It is not a de Polignac number, because 981482091 - 2² = 981482087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (981482071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160276 + ... + 166286.

It is an arithmetic number, because the mean of its divisors is an integer number (84071808).

Almost surely, 2^981482091 is an apocalyptic number.

981482091 is a deficient number, since it is larger than the sum of its proper divisors (363666837).

981482091 is a wasteful number, since it uses less digits than its factorization.

981482091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 981482091 is about 31328.6145719851. The cubic root of 981482091 is about 993.7888653444.

The spelling of 981482091 in words is "nine hundred eighty-one million, four hundred eighty-two thousand, ninety-one".