135446715256481 has 16 divisors (see below), whose sum is σ = 142989886932480. Its totient is φ = 128042739601920.

The previous prime is 135446715256459. The next prime is 135446715256493. The reversal of 135446715256481 is 184652517644531.

It is a cyclic number.

It is not a de Polignac number, because 135446715256481 - 2²² = 135446711062177 is a prime.

It is a super-2 number, since 2×135446715256481² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135446715253481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10886105 + ... + 19733238.

It is an arithmetic number, because the mean of its divisors is an integer number (8936867933280).

Almost surely, 2^{135446715256481} is an apocalyptic number.

It is an amenable number.

135446715256481 is a deficient number, since it is larger than the sum of its proper divisors (7543171675999).

135446715256481 is a wasteful number, since it uses less digits than its factorization.

135446715256481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30621616.

The product of its digits is 96768000, while the sum is 62.

The spelling of 135446715256481 in words is "one hundred thirty-five trillion, four hundred forty-six billion, seven hundred fifteen million, two hundred fifty-six thousand, four hundred eighty-one".