133736555257 has 2 divisors, whose sum is σ = 133736555258. Its totient is φ = 133736555256.

The previous prime is 133736555207. The next prime is 133736555261. The reversal of 133736555257 is 752555637331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72194853481 + 61541701776 = 268691^2 + 248076^2 .

It is a cyclic number.

It is not a de Polignac number, because 133736555257 - 2¹⁹ = 133736030969 is a prime.

It is a super-2 number, since 2×133736555257² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133736555207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66868277628 + 66868277629.

It is an arithmetic number, because the mean of its divisors is an integer number (66868277629).

Almost surely, 2^133736555257 is an apocalyptic number.

It is an amenable number.

133736555257 is a deficient number, since it is larger than the sum of its proper divisors (1).

133736555257 is an equidigital number, since it uses as much as digits as its factorization.

133736555257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9922500, while the sum is 52.

The spelling of 133736555257 in words is "one hundred thirty-three billion, seven hundred thirty-six million, five hundred fifty-five thousand, two hundred fifty-seven".