15214342309 has 2 divisors, whose sum is σ = 15214342310. Its totient is φ = 15214342308.

The previous prime is 15214342303. The next prime is 15214342343. The reversal of 15214342309 is 90324341251.

It is an a-pointer prime, because the next prime (15214342343) can be obtained adding 15214342309 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10251562500 + 4962779809 = 101250^2 + 70447^2 .

It is an emirp because it is prime and its reverse (90324341251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15214342309 - 2¹⁷ = 15214211237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15214342303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7607171154 + 7607171155.

It is an arithmetic number, because the mean of its divisors is an integer number (7607171155).

Almost surely, 2^15214342309 is an apocalyptic number.

It is an amenable number.

15214342309 is a deficient number, since it is larger than the sum of its proper divisors (1).

15214342309 is an equidigital number, since it uses as much as digits as its factorization.

15214342309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 15214342309 in words is "fifteen billion, two hundred fourteen million, three hundred forty-two thousand, three hundred nine".