100809063 has 8 divisors (see below), whose sum is σ = 149346800. Its totient is φ = 67206024.

The previous prime is 100809013. The next prime is 100809067. The reversal of 100809063 is 360908001.

It is not a de Polignac number, because 100809063 - 2⁹ = 100808551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3733669 = 100809063 / (1 + 0 + 0 + 8 + 0 + 9 + 0 + 6 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100809067) 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, 1866808 + ... + 1866861.

It is an arithmetic number, because the mean of its divisors is an integer number (18668350).

Almost surely, 2^100809063 is an apocalyptic number.

100809063 is a deficient number, since it is larger than the sum of its proper divisors (48537737).

100809063 is an equidigital number, since it uses as much as digits as its factorization.

100809063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733678 (or 3733672 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 100809063 is about 10040.3716564677. The cubic root of 100809063 is about 465.4073018217.

The spelling of 100809063 in words is "one hundred million, eight hundred nine thousand, sixty-three".