1336722137 has 2 divisors, whose sum is σ = 1336722138. Its totient is φ = 1336722136.

The previous prime is 1336722133. The next prime is 1336722157. The reversal of 1336722137 is 7312276331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 673350601 + 663371536 = 25949^2 + 25756^2 .

It is a cyclic number.

It is not a de Polignac number, because 1336722137 - 2² = 1336722133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1336722097 and 1336722106.

It is not a weakly prime, because it can be changed into another prime (1336722133) 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, 668361068 + 668361069.

It is an arithmetic number, because the mean of its divisors is an integer number (668361069).

Almost surely, 2^1336722137 is an apocalyptic number.

It is an amenable number.

1336722137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1336722137 is an equidigital number, since it uses as much as digits as its factorization.

1336722137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 35.

The square root of 1336722137 is about 36561.2108251354. The cubic root of 1336722137 is about 1101.5740926904.

Adding to 1336722137 its reverse (7312276331), we get a palindrome (8648998468).

The spelling of 1336722137 in words is "one billion, three hundred thirty-six million, seven hundred twenty-two thousand, one hundred thirty-seven".