133737555257 has 2 divisors, whose sum is σ = 133737555258. Its totient is φ = 133737555256.

The previous prime is 133737555241. The next prime is 133737555271. The reversal of 133737555257 is 752555737331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97184321536 + 36553233721 = 311744^2 + 191189^2 .

It is a cyclic number.

It is not a de Polignac number, because 133737555257 - 2⁴ = 133737555241 is a prime.

It is a super-2 number, since 2×133737555257² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133737555199 and 133737555208.

It is not a weakly prime, because it can be changed into another prime (133736555257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66868777628 + 66868777629.

It is an arithmetic number, because the mean of its divisors is an integer number (66868777629).

Almost surely, 2^133737555257 is an apocalyptic number.

It is an amenable number.

133737555257 is a deficient number, since it is larger than the sum of its proper divisors (1).

133737555257 is an equidigital number, since it uses as much as digits as its factorization.

133737555257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11576250, while the sum is 53.

The spelling of 133737555257 in words is "one hundred thirty-three billion, seven hundred thirty-seven million, five hundred fifty-five thousand, two hundred fifty-seven".