133235497 has 2 divisors, whose sum is σ = 133235498. Its totient is φ = 133235496.

The previous prime is 133235471. The next prime is 133235507. The reversal of 133235497 is 794532331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103815721 + 29419776 = 10189^2 + 5424^2 .

It is a cyclic number.

It is not a de Polignac number, because 133235497 - 2⁷ = 133235369 is a prime.

It is not a weakly prime, because it can be changed into another prime (133235797) 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, 66617748 + 66617749.

It is an arithmetic number, because the mean of its divisors is an integer number (66617749).

Almost surely, 2^133235497 is an apocalyptic number.

It is an amenable number.

133235497 is a deficient number, since it is larger than the sum of its proper divisors (1).

133235497 is an equidigital number, since it uses as much as digits as its factorization.

133235497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 37.

The square root of 133235497 is about 11542.7681688579. The cubic root of 133235497 is about 510.7479695120.

The spelling of 133235497 in words is "one hundred thirty-three million, two hundred thirty-five thousand, four hundred ninety-seven".