133546297 has 2 divisors, whose sum is σ = 133546298. Its totient is φ = 133546296.

The previous prime is 133546291. The next prime is 133546319. The reversal of 133546297 is 792645331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129140496 + 4405801 = 11364^2 + 2099^2 .

It is an emirp because it is prime and its reverse (792645331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133546297 - 2³ = 133546289 is a prime.

It is a super-2 number, since 2×133546297² = 35669226884824418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133546291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66773148 + 66773149.

It is an arithmetic number, because the mean of its divisors is an integer number (66773149).

Almost surely, 2^133546297 is an apocalyptic number.

It is an amenable number.

133546297 is a deficient number, since it is larger than the sum of its proper divisors (1).

133546297 is an equidigital number, since it uses as much as digits as its factorization.

133546297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 133546297 is about 11556.2233017539. The cubic root of 133546297 is about 511.1448036898.

The spelling of 133546297 in words is "one hundred thirty-three million, five hundred forty-six thousand, two hundred ninety-seven".