13650491 has 2 divisors, whose sum is σ = 13650492. Its totient is φ = 13650490.

The previous prime is 13650467. The next prime is 13650517. The reversal of 13650491 is 19405631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13650491 is a prime.

It is not a weakly prime, because it can be changed into another prime (13650421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6825245 + 6825246.

It is an arithmetic number, because the mean of its divisors is an integer number (6825246).

Almost surely, 2^13650491 is an apocalyptic number.

13650491 is a deficient number, since it is larger than the sum of its proper divisors (1).

13650491 is an equidigital number, since it uses as much as digits as its factorization.

13650491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 13650491 is about 3694.6570882830. The cubic root of 13650491 is about 238.9916665220.

It can be divided in two parts, 13650 and 491, that added together give a palindrome (14141).

The spelling of 13650491 in words is "thirteen million, six hundred fifty thousand, four hundred ninety-one".