15212233139 has 2 divisors, whose sum is σ = 15212233140. Its totient is φ = 15212233138.

The previous prime is 15212233123. The next prime is 15212233171. The reversal of 15212233139 is 93133221251.

It is an a-pointer prime, because the next prime (15212233171) can be obtained adding 15212233139 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15212233139 - 2⁴ = 15212233123 is a prime.

It is not a weakly prime, because it can be changed into another prime (15212223139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606116569 + 7606116570.

It is an arithmetic number, because the mean of its divisors is an integer number (7606116570).

Almost surely, 2^15212233139 is an apocalyptic number.

15212233139 is a deficient number, since it is larger than the sum of its proper divisors (1).

15212233139 is an equidigital number, since it uses as much as digits as its factorization.

15212233139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The spelling of 15212233139 in words is "fifteen billion, two hundred twelve million, two hundred thirty-three thousand, one hundred thirty-nine".