133397357 has 2 divisors, whose sum is σ = 133397358. Its totient is φ = 133397356.

The previous prime is 133397293. The next prime is 133397389. The reversal of 133397357 is 753793331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133379401 + 17956 = 11549^2 + 134^2 .

It is an emirp because it is prime and its reverse (753793331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133397357 - 2⁶ = 133397293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133337357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66698678 + 66698679.

It is an arithmetic number, because the mean of its divisors is an integer number (66698679).

Almost surely, 2^133397357 is an apocalyptic number.

It is an amenable number.

133397357 is a deficient number, since it is larger than the sum of its proper divisors (1).

133397357 is an equidigital number, since it uses as much as digits as its factorization.

133397357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 178605, while the sum is 41.

The square root of 133397357 is about 11549.7773571615. Note that the first 3 decimals coincide. The cubic root of 133397357 is about 510.9547117439.

The spelling of 133397357 in words is "one hundred thirty-three million, three hundred ninety-seven thousand, three hundred fifty-seven".