100472111 has 2 divisors, whose sum is σ = 100472112. Its totient is φ = 100472110.

The previous prime is 100472107. The next prime is 100472143. The reversal of 100472111 is 111274001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100472111 - 2² = 100472107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100472111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100472161) 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 as a sum of consecutive naturals, namely, 50236055 + 50236056.

It is an arithmetic number, because the mean of its divisors is an integer number (50236056).

Almost surely, 2^100472111 is an apocalyptic number.

100472111 is a deficient number, since it is larger than the sum of its proper divisors (1).

100472111 is an equidigital number, since it uses as much as digits as its factorization.

100472111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 100472111 is about 10023.5777544747. The cubic root of 100472111 is about 464.8881852397. Note that the first 3 decimals are identical.

The spelling of 100472111 in words is "one hundred million, four hundred seventy-two thousand, one hundred eleven".