16103491 has 2 divisors, whose sum is σ = 16103492. Its totient is φ = 16103490.

The previous prime is 16103449. The next prime is 16103513. The reversal of 16103491 is 19430161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16103491 - 2⁹ = 16102979 is a prime.

It is not a weakly prime, because it can be changed into another prime (16103441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8051745 + 8051746.

It is an arithmetic number, because the mean of its divisors is an integer number (8051746).

Almost surely, 2^16103491 is an apocalyptic number.

16103491 is a deficient number, since it is larger than the sum of its proper divisors (1).

16103491 is an equidigital number, since it uses as much as digits as its factorization.

16103491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 16103491 is about 4012.9155236561. The cubic root of 16103491 is about 252.5263365007.

The spelling of 16103491 in words is "sixteen million, one hundred three thousand, four hundred ninety-one".