135041402061 has 24 divisors (see below), whose sum is σ = 203556837120. Its totient is φ = 86106515616.

The previous prime is 135041402033. The next prime is 135041402101. The reversal of 135041402061 is 160204140531.

It is a happy number.

135041402061 is a `hidden beast` number, since 13 + 504 + 140 + 2 + 0 + 6 + 1 = 666.

It is not a de Polignac number, because 135041402061 - 2¹⁷ = 135041270989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135041402021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4438860 + ... + 4469178.

It is an arithmetic number, because the mean of its divisors is an integer number (8481534880).

Almost surely, 2^135041402061 is an apocalyptic number.

It is an amenable number.

135041402061 is a deficient number, since it is larger than the sum of its proper divisors (68515435059).

135041402061 is a wasteful number, since it uses less digits than its factorization.

135041402061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51865 (or 51862 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 135041402061 its reverse (160204140531), we get a palindrome (295245542592).

The spelling of 135041402061 in words is "one hundred thirty-five billion, forty-one million, four hundred two thousand, sixty-one".