981100456 has 32 divisors (see below), whose sum is σ = 2104914240. Its totient is φ = 419960448.

The previous prime is 981100453. The next prime is 981100459. The reversal of 981100456 is 654001189.

It is an interprime number because it is at equal distance from previous prime (981100453) and next prime (981100459).

It is not an unprimeable number, because it can be changed into a prime (981100453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37771 + ... + 58213.

It is an arithmetic number, because the mean of its divisors is an integer number (65778570).

Almost surely, 2^981100456 is an apocalyptic number.

It is an amenable number.

981100456 is an abundant number, since it is smaller than the sum of its proper divisors (1123813784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981100456 is a wasteful number, since it uses less digits than its factorization.

981100456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21313 (or 21309 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 981100456 is about 31322.5231423013. The cubic root of 981100456 is about 993.6600418760.

The spelling of 981100456 in words is "nine hundred eighty-one million, one hundred thousand, four hundred fifty-six".