797155133 has 2 divisors, whose sum is σ = 797155134. Its totient is φ = 797155132.

The previous prime is 797155081. The next prime is 797155141. The reversal of 797155133 is 331551797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 786409849 + 10745284 = 28043^2 + 3278^2 .

It is a cyclic number.

It is not a de Polignac number, because 797155133 - 2⁸ = 797154877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (797155433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398577566 + 398577567.

It is an arithmetic number, because the mean of its divisors is an integer number (398577567).

Almost surely, 2^797155133 is an apocalyptic number.

It is an amenable number.

797155133 is a deficient number, since it is larger than the sum of its proper divisors (1).

797155133 is an equidigital number, since it uses as much as digits as its factorization.

797155133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 99225, while the sum is 41.

The square root of 797155133 is about 28233.9358396948. The cubic root of 797155133 is about 927.2160678692.

It can be divided in two parts, 79715 and 5133, that added together give a palindrome (84848).

The spelling of 797155133 in words is "seven hundred ninety-seven million, one hundred fifty-five thousand, one hundred thirty-three".