133452497 has 2 divisors, whose sum is σ = 133452498. Its totient is φ = 133452496.

The previous prime is 133452491. The next prime is 133452547. The reversal of 133452497 is 794254331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133425601 + 26896 = 11551^2 + 164^2 .

It is a cyclic number.

It is not a de Polignac number, because 133452497 - 2⁴ = 133452481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133452497.

It is not a weakly prime, because it can be changed into another prime (133452491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66726248 + 66726249.

It is an arithmetic number, because the mean of its divisors is an integer number (66726249).

Almost surely, 2^133452497 is an apocalyptic number.

It is an amenable number.

133452497 is a deficient number, since it is larger than the sum of its proper divisors (1).

133452497 is an equidigital number, since it uses as much as digits as its factorization.

133452497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 133452497 is about 11552.1641695398. The cubic root of 133452497 is about 511.0251033479.

The spelling of 133452497 in words is "one hundred thirty-three million, four hundred fifty-two thousand, four hundred ninety-seven".