135177267497 has 2 divisors, whose sum is σ = 135177267498. Its totient is φ = 135177267496.

The previous prime is 135177267413. The next prime is 135177267503. The reversal of 135177267497 is 794762771531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128138225296 + 7039042201 = 357964^2 + 83899^2 .

It is a cyclic number.

It is not a de Polignac number, because 135177267497 - 2¹⁶ = 135177201961 is a prime.

It is not a weakly prime, because it can be changed into another prime (135177269497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67588633748 + 67588633749.

It is an arithmetic number, because the mean of its divisors is an integer number (67588633749).

Almost surely, 2^135177267497 is an apocalyptic number.

It is an amenable number.

135177267497 is a deficient number, since it is larger than the sum of its proper divisors (1).

135177267497 is an equidigital number, since it uses as much as digits as its factorization.

135177267497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15558480, while the sum is 59.

The spelling of 135177267497 in words is "one hundred thirty-five billion, one hundred seventy-seven million, two hundred sixty-seven thousand, four hundred ninety-seven".