133763999 has 2 divisors, whose sum is σ = 133764000. Its totient is φ = 133763998.

The previous prime is 133763963. The next prime is 133764023. The reversal of 133763999 is 999367331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133763999 - 2¹⁶ = 133698463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133760999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66881999 + 66882000.

It is an arithmetic number, because the mean of its divisors is an integer number (66882000).

Almost surely, 2^133763999 is an apocalyptic number.

133763999 is a deficient number, since it is larger than the sum of its proper divisors (1).

133763999 is an equidigital number, since it uses as much as digits as its factorization.

133763999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 826686, while the sum is 50.

The square root of 133763999 is about 11565.6387199324. The cubic root of 133763999 is about 511.4224023869.

The spelling of 133763999 in words is "one hundred thirty-three million, seven hundred sixty-three thousand, nine hundred ninety-nine".