14949531209 has 2 divisors, whose sum is σ = 14949531210. Its totient is φ = 14949531208.

The previous prime is 14949531203. The next prime is 14949531239. The reversal of 14949531209 is 90213594941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10905207184 + 4044324025 = 104428^2 + 63595^2 .

It is a cyclic number.

It is not a de Polignac number, because 14949531209 - 2⁴ = 14949531193 is a prime.

It is not a weakly prime, because it can be changed into another prime (14949531203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7474765604 + 7474765605.

It is an arithmetic number, because the mean of its divisors is an integer number (7474765605).

Almost surely, 2^14949531209 is an apocalyptic number.

It is an amenable number.

14949531209 is a deficient number, since it is larger than the sum of its proper divisors (1).

14949531209 is an equidigital number, since it uses as much as digits as its factorization.

14949531209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 47.

The spelling of 14949531209 in words is "fourteen billion, nine hundred forty-nine million, five hundred thirty-one thousand, two hundred nine".