133473497 has 2 divisors, whose sum is σ = 133473498. Its totient is φ = 133473496.

The previous prime is 133473463. The next prime is 133473521. The reversal of 133473497 is 794374331.

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., 132043081 + 1430416 = 11491^2 + 1196^2 .

It is an emirp because it is prime and its reverse (794374331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133473497 - 2²² = 129279193 is a prime.

It is not a weakly prime, because it can be changed into another prime (133473407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66736748 + 66736749.

It is an arithmetic number, because the mean of its divisors is an integer number (66736749).

Almost surely, 2^133473497 is an apocalyptic number.

It is an amenable number.

133473497 is a deficient number, since it is larger than the sum of its proper divisors (1).

133473497 is an equidigital number, since it uses as much as digits as its factorization.

133473497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 41.

The square root of 133473497 is about 11553.0730543869. The cubic root of 133473497 is about 511.0519068037.

The spelling of 133473497 in words is "one hundred thirty-three million, four hundred seventy-three thousand, four hundred ninety-seven".