133578763 has 2 divisors, whose sum is σ = 133578764. Its totient is φ = 133578762.

The previous prime is 133578751. The next prime is 133578787. The reversal of 133578763 is 367875331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133578763 - 2¹³ = 133570571 is a prime.

It is a super-2 number, since 2×133578763² = 35686571849220338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133578793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66789381 + 66789382.

It is an arithmetic number, because the mean of its divisors is an integer number (66789382).

Almost surely, 2^133578763 is an apocalyptic number.

133578763 is a deficient number, since it is larger than the sum of its proper divisors (1).

133578763 is an equidigital number, since it uses as much as digits as its factorization.

133578763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 43.

The square root of 133578763 is about 11557.6279140661. The cubic root of 133578763 is about 511.1862212431.

It can be divided in two parts, 13357876 and 3, that multiplied together give a triangular number (40073628 = T₈₉₅₂).

The spelling of 133578763 in words is "one hundred thirty-three million, five hundred seventy-eight thousand, seven hundred sixty-three".