135246025605161 has 2 divisors, whose sum is σ = 135246025605162. Its totient is φ = 135246025605160.

The previous prime is 135246025605157. The next prime is 135246025605181. The reversal of 135246025605161 is 161506520642531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105155918757136 + 30090106848025 = 10254556^2 + 5485445^2 .

It is a cyclic number.

It is not a de Polignac number, because 135246025605161 - 2² = 135246025605157 is a prime.

It is not a weakly prime, because it can be changed into another prime (135246025605101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67623012802580 + 67623012802581.

It is an arithmetic number, because the mean of its divisors is an integer number (67623012802581).

Almost surely, 2^{135246025605161} is an apocalyptic number.

It is an amenable number.

135246025605161 is a deficient number, since it is larger than the sum of its proper divisors (1).

135246025605161 is an equidigital number, since it uses as much as digits as its factorization.

135246025605161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 135246025605161 in words is "one hundred thirty-five trillion, two hundred forty-six billion, twenty-five million, six hundred five thousand, one hundred sixty-one".