133355797 has 2 divisors, whose sum is σ = 133355798. Its totient is φ = 133355796.

The previous prime is 133355777. The next prime is 133355861. The reversal of 133355797 is 797553331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118679236 + 14676561 = 10894^2 + 3831^2 .

It is a cyclic number.

It is not a de Polignac number, because 133355797 - 2⁷ = 133355669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133355777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66677898 + 66677899.

It is an arithmetic number, because the mean of its divisors is an integer number (66677899).

Almost surely, 2^133355797 is an apocalyptic number.

It is an amenable number.

133355797 is a deficient number, since it is larger than the sum of its proper divisors (1).

133355797 is an equidigital number, since it uses as much as digits as its factorization.

133355797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 297675, while the sum is 43.

The square root of 133355797 is about 11547.9780481260. The cubic root of 133355797 is about 510.9016435174.

The spelling of 133355797 in words is "one hundred thirty-three million, three hundred fifty-five thousand, seven hundred ninety-seven".