15228338137 has 2 divisors, whose sum is σ = 15228338138. Its totient is φ = 15228338136.

The previous prime is 15228338131. The next prime is 15228338141. The reversal of 15228338137 is 73183382251.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8138024521 + 7090313616 = 90211^2 + 84204^2 .

It is a cyclic number.

It is not a de Polignac number, because 15228338137 - 2¹⁵ = 15228305369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15228338093 and 15228338102.

It is not a weakly prime, because it can be changed into another prime (15228338131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7614169068 + 7614169069.

It is an arithmetic number, because the mean of its divisors is an integer number (7614169069).

Almost surely, 2^15228338137 is an apocalyptic number.

It is an amenable number.

15228338137 is a deficient number, since it is larger than the sum of its proper divisors (1).

15228338137 is an equidigital number, since it uses as much as digits as its factorization.

15228338137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The spelling of 15228338137 in words is "fifteen billion, two hundred twenty-eight million, three hundred thirty-eight thousand, one hundred thirty-seven".