133377863 has 2 divisors, whose sum is σ = 133377864. Its totient is φ = 133377862.

The previous prime is 133377823. The next prime is 133377883. The reversal of 133377863 is 368773331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133377863 - 2²² = 129183559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133377863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133377823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66688931 + 66688932.

It is an arithmetic number, because the mean of its divisors is an integer number (66688932).

Almost surely, 2^133377863 is an apocalyptic number.

133377863 is a deficient number, since it is larger than the sum of its proper divisors (1).

133377863 is an equidigital number, since it uses as much as digits as its factorization.

133377863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 41.

The square root of 133377863 is about 11548.9334139565. The cubic root of 133377863 is about 510.9298211049.

The spelling of 133377863 in words is "one hundred thirty-three million, three hundred seventy-seven thousand, eight hundred sixty-three".