135401404031442 has 12 divisors (see below), whose sum is σ = 293369708734830. Its totient is φ = 45133801343808.

The previous prime is 135401404031371. The next prime is 135401404031483. The reversal of 135401404031442 is 244130404104531.

It is a happy number.

135401404031442 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 0 + 140 + 40 + 31 + 442 = 666.

It can be written as a sum of positive squares in only one way, i.e., 96748686160281 + 38652717871161 = 9836091^2 + 6217131^2 .

It is a junction number, because it is equal to n+sod(n) for n = 135401404031397 and 135401404031406.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3761150111967 + ... + 3761150112002.

Almost surely, 2^{135401404031442} is an apocalyptic number.

135401404031442 is an abundant number, since it is smaller than the sum of its proper divisors (157968304703388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135401404031442 is a wasteful number, since it uses less digits than its factorization.

135401404031442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522300223977 (or 7522300223974 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 135401404031442 its reverse (244130404104531), we get a palindrome (379531808135973).

The spelling of 135401404031442 in words is "one hundred thirty-five trillion, four hundred one billion, four hundred four million, thirty-one thousand, four hundred forty-two".