100456985 has 8 divisors (see below), whose sum is σ = 125789760. Its totient is φ = 76871344.

The previous prime is 100456981. The next prime is 100457003. The reversal of 100456985 is 589654001.

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

It is a cyclic number.

It is not a de Polignac number, because 100456985 - 2² = 100456981 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100456981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436655 + ... + 436884.

It is an arithmetic number, because the mean of its divisors is an integer number (15723720).

Almost surely, 2^100456985 is an apocalyptic number.

It is an amenable number.

100456985 is a deficient number, since it is larger than the sum of its proper divisors (25332775).

100456985 is an equidigital number, since it uses as much as digits as its factorization.

100456985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873567.

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

The square root of 100456985 is about 10022.8232050655. The cubic root of 100456985 is about 464.8648545478.

The spelling of 100456985 in words is "one hundred million, four hundred fifty-six thousand, nine hundred eighty-five".