15122140009 has 2 divisors, whose sum is σ = 15122140010. Its totient is φ = 15122140008.

The previous prime is 15122139959. The next prime is 15122140043. The reversal of 15122140009 is 90004122151.

It is a happy number.

15122140009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15122112784 + 27225 = 122972^2 + 165^2 .

It is a cyclic number.

It is not a de Polignac number, because 15122140009 - 2⁹ = 15122139497 is a prime.

It is not a weakly prime, because it can be changed into another prime (15122140049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7561070004 + 7561070005.

It is an arithmetic number, because the mean of its divisors is an integer number (7561070005).

Almost surely, 2^15122140009 is an apocalyptic number.

It is an amenable number.

15122140009 is a deficient number, since it is larger than the sum of its proper divisors (1).

15122140009 is an equidigital number, since it uses as much as digits as its factorization.

15122140009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 15122140009 in words is "fifteen billion, one hundred twenty-two million, one hundred forty thousand, nine".