135641234642 has 16 divisors (see below), whose sum is σ = 204798908952. Its totient is φ = 67375956480.

The previous prime is 135641234633. The next prime is 135641234657. The reversal of 135641234642 is 246432146531.

It can be written as a sum of positive squares in 4 ways, for example, as 101972287561 + 33668947081 = 319331^2 + 183491^2 .

It is a super-2 number, since 2×135641234642² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135641234642.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9392 + ... + 520932.

Almost surely, 2^135641234642 is an apocalyptic number.

135641234642 is a deficient number, since it is larger than the sum of its proper divisors (69157674310).

135641234642 is a wasteful number, since it uses less digits than its factorization.

135641234642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512413.

The product of its digits is 414720, while the sum is 41.

The spelling of 135641234642 in words is "one hundred thirty-five billion, six hundred forty-one million, two hundred thirty-four thousand, six hundred forty-two".