1336711961 has 4 divisors (see below), whose sum is σ = 1439535972. Its totient is φ = 1233887952.

The previous prime is 1336711951. The next prime is 1336711963. The reversal of 1336711961 is 1691176331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1691176331 = 13 ⋅130090487.

It can be written as a sum of positive squares in 2 ways, for example, as 121771225 + 1214940736 = 11035^2 + 34856^2 .

It is a cyclic number.

It is not a de Polignac number, because 1336711961 - 2¹⁰ = 1336710937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1336711963) 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 in 3 ways as a sum of consecutive naturals, for example, 51411986 + ... + 51412011.

It is an arithmetic number, because the mean of its divisors is an integer number (359883993).

Almost surely, 2^1336711961 is an apocalyptic number.

It is an amenable number.

1336711961 is a deficient number, since it is larger than the sum of its proper divisors (102824011).

1336711961 is a wasteful number, since it uses less digits than its factorization.

1336711961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102824010.

The product of its digits is 20412, while the sum is 38.

The square root of 1336711961 is about 36561.0716609894. The cubic root of 1336711961 is about 1101.5712973833.

The spelling of 1336711961 in words is "one billion, three hundred thirty-six million, seven hundred eleven thousand, nine hundred sixty-one".