133392737 has 2 divisors, whose sum is σ = 133392738. Its totient is φ = 133392736.

The previous prime is 133392731. The next prime is 133392739. The reversal of 133392737 is 737293331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102434641 + 30958096 = 10121^2 + 5564^2 .

It is a cyclic number.

It is not a de Polignac number, because 133392737 - 2⁸ = 133392481 is a prime.

Together with 133392739, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133392737.

It is not a weakly prime, because it can be changed into another prime (133392731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66696368 + 66696369.

It is an arithmetic number, because the mean of its divisors is an integer number (66696369).

Almost surely, 2^133392737 is an apocalyptic number.

It is an amenable number.

133392737 is a deficient number, since it is larger than the sum of its proper divisors (1).

133392737 is an equidigital number, since it uses as much as digits as its factorization.

133392737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71442, while the sum is 38.

The square root of 133392737 is about 11549.5773515744. The cubic root of 133392737 is about 510.9488129813.

The spelling of 133392737 in words is "one hundred thirty-three million, three hundred ninety-two thousand, seven hundred thirty-seven".