135220002236404 has 12 divisors (see below), whose sum is σ = 250554710026404. Its totient is φ = 63632942228864.

The previous prime is 135220002236399. The next prime is 135220002236537. The reversal of 135220002236404 is 404632200022531.

It can be written as a sum of positive squares in 2 ways, for example, as 115643784288400 + 19576217948004 = 10753780^2 + 4424502^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 135220002236404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994264722259 + ... + 994264722394.

It is an arithmetic number, because the mean of its divisors is an integer number (20879559168867).

Almost surely, 2^{135220002236404} is an apocalyptic number.

It is an amenable number.

135220002236404 is a deficient number, since it is larger than the sum of its proper divisors (115334707790000).

135220002236404 is a wasteful number, since it uses less digits than its factorization.

135220002236404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988529444674 (or 1988529444672 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 135220002236404 its reverse (404632200022531), we get a palindrome (539852202258935).

The spelling of 135220002236404 in words is "one hundred thirty-five trillion, two hundred twenty billion, two million, two hundred thirty-six thousand, four hundred four".