1322232139 has 2 divisors, whose sum is σ = 1322232140. Its totient is φ = 1322232138.

The previous prime is 1322232113. The next prime is 1322232143. The reversal of 1322232139 is 9312322231.

It is a strong prime.

It is an emirp because it is prime and its reverse (9312322231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1322232139 - 2¹⁵ = 1322199371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1322232169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661116069 + 661116070.

It is an arithmetic number, because the mean of its divisors is an integer number (661116070).

Almost surely, 2^1322232139 is an apocalyptic number.

1322232139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322232139 is an equidigital number, since it uses as much as digits as its factorization.

1322232139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 28.

The square root of 1322232139 is about 36362.5100756260. The cubic root of 1322232139 is about 1097.5792880695.

The spelling of 1322232139 in words is "one billion, three hundred twenty-two million, two hundred thirty-two thousand, one hundred thirty-nine".