133963897 has 2 divisors, whose sum is σ = 133963898. Its totient is φ = 133963896.

The previous prime is 133963867. The next prime is 133963901. The reversal of 133963897 is 798369331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75272976 + 58690921 = 8676^2 + 7661^2 .

It is an emirp because it is prime and its reverse (798369331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133963897 is a prime.

It is a pancake number, because a pancake can be divided into 133963897 parts by 16368 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 133963897.

It is not a weakly prime, because it can be changed into another prime (133963867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66981948 + 66981949.

It is an arithmetic number, because the mean of its divisors is an integer number (66981949).

Almost surely, 2^133963897 is an apocalyptic number.

It is an amenable number.

133963897 is a deficient number, since it is larger than the sum of its proper divisors (1).

133963897 is an equidigital number, since it uses as much as digits as its factorization.

133963897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 49.

The square root of 133963897 is about 11574.2773856513. The cubic root of 133963897 is about 511.6770335103.

The spelling of 133963897 in words is "one hundred thirty-three million, nine hundred sixty-three thousand, eight hundred ninety-seven".