100663291 has 2 divisors, whose sum is σ = 100663292. Its totient is φ = 100663290.

The previous prime is 100663261. The next prime is 100663319. The reversal of 100663291 is 192366001.

It is an a-pointer prime, because the next prime (100663319) can be obtained adding 100663291 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100663291 - 2⁷ = 100663163 is a prime.

It is not a weakly prime, because it can be changed into another prime (100663261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50331645 + 50331646.

It is an arithmetic number, because the mean of its divisors is an integer number (50331646).

Almost surely, 2^100663291 is an apocalyptic number.

100663291 is a deficient number, since it is larger than the sum of its proper divisors (1).

100663291 is an equidigital number, since it uses as much as digits as its factorization.

100663291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 100663291 is about 10033.1097372649. The cubic root of 100663291 is about 465.1828640631.

The spelling of 100663291 in words is "one hundred million, six hundred sixty-three thousand, two hundred ninety-one".