100312447 has 2 divisors, whose sum is σ = 100312448. Its totient is φ = 100312446.

The previous prime is 100312423. The next prime is 100312451. The reversal of 100312447 is 744213001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100312447 - 2¹⁵ = 100279679 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100310447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50156223 + 50156224.

It is an arithmetic number, because the mean of its divisors is an integer number (50156224).

Almost surely, 2^100312447 is an apocalyptic number.

100312447 is a deficient number, since it is larger than the sum of its proper divisors (1).

100312447 is an equidigital number, since it uses as much as digits as its factorization.

100312447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 100312447 is about 10015.6101661357. The cubic root of 100312447 is about 464.6417975950.

Adding to 100312447 its reverse (744213001), we get a palindrome (844525448).

The spelling of 100312447 in words is "one hundred million, three hundred twelve thousand, four hundred forty-seven".