133714991 has 2 divisors, whose sum is σ = 133714992. Its totient is φ = 133714990.

The previous prime is 133714961. The next prime is 133715009. The reversal of 133714991 is 199417331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133714991 - 2⁶ = 133714927 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133714901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66857495 + 66857496.

It is an arithmetic number, because the mean of its divisors is an integer number (66857496).

Almost surely, 2^133714991 is an apocalyptic number.

133714991 is a deficient number, since it is larger than the sum of its proper divisors (1).

133714991 is an equidigital number, since it uses as much as digits as its factorization.

133714991 is an evil number, because the sum of its binary digits is even.

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

The square root of 133714991 is about 11563.5198361053. The cubic root of 133714991 is about 511.3599370229.

The spelling of 133714991 in words is "one hundred thirty-three million, seven hundred fourteen thousand, nine hundred ninety-one".