103289891 has 2 divisors, whose sum is σ = 103289892. Its totient is φ = 103289890.

The previous prime is 103289869. The next prime is 103289899. The reversal of 103289891 is 198982301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103289891 - 2²² = 99095587 is a prime.

It is not a weakly prime, because it can be changed into another prime (103289899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51644945 + 51644946.

It is an arithmetic number, because the mean of its divisors is an integer number (51644946).

Almost surely, 2^103289891 is an apocalyptic number.

103289891 is a deficient number, since it is larger than the sum of its proper divisors (1).

103289891 is an equidigital number, since it uses as much as digits as its factorization.

103289891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 103289891 is about 10163.1634346792. The cubic root of 103289891 is about 469.1941691882.

The spelling of 103289891 in words is "one hundred three million, two hundred eighty-nine thousand, eight hundred ninety-one".