135955955497 has 2 divisors, whose sum is σ = 135955955498. Its totient is φ = 135955955496.

The previous prime is 135955955491. The next prime is 135955955507. The reversal of 135955955497 is 794559559531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129769975696 + 6185979801 = 360236^2 + 78651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135955955497 is a prime.

It is not a weakly prime, because it can be changed into another prime (135955955491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67977977748 + 67977977749.

It is an arithmetic number, because the mean of its divisors is an integer number (67977977749).

Almost surely, 2^135955955497 is an apocalyptic number.

It is an amenable number.

135955955497 is a deficient number, since it is larger than the sum of its proper divisors (1).

135955955497 is an equidigital number, since it uses as much as digits as its factorization.

135955955497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 191362500, while the sum is 67.

The spelling of 135955955497 in words is "one hundred thirty-five billion, nine hundred fifty-five million, nine hundred fifty-five thousand, four hundred ninety-seven".