135462661457 has 2 divisors, whose sum is σ = 135462661458. Its totient is φ = 135462661456.

The previous prime is 135462661447. The next prime is 135462661493. The reversal of 135462661457 is 754166264531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134354503936 + 1108157521 = 366544^2 + 33289^2 .

It is a cyclic number.

It is not a de Polignac number, because 135462661457 - 2⁴ = 135462661441 is a prime.

It is not a weakly prime, because it can be changed into another prime (135462661447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67731330728 + 67731330729.

It is an arithmetic number, because the mean of its divisors is an integer number (67731330729).

Almost surely, 2^135462661457 is an apocalyptic number.

It is an amenable number.

135462661457 is a deficient number, since it is larger than the sum of its proper divisors (1).

135462661457 is an equidigital number, since it uses as much as digits as its factorization.

135462661457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 50.

The spelling of 135462661457 in words is "one hundred thirty-five billion, four hundred sixty-two million, six hundred sixty-one thousand, four hundred fifty-seven".