135364431455 has 32 divisors (see below), whose sum is σ = 189105684480. Its totient is φ = 91926213120.

The previous prime is 135364431451. The next prime is 135364431457. The reversal of 135364431455 is 554134463531.

It is a happy number.

It is not a de Polignac number, because 135364431455 - 2² = 135364431451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135364431451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 451235 + ... + 688724.

It is an arithmetic number, because the mean of its divisors is an integer number (5909552640).

Almost surely, 2^135364431455 is an apocalyptic number.

135364431455 is a deficient number, since it is larger than the sum of its proper divisors (53741253025).

135364431455 is a wasteful number, since it uses less digits than its factorization.

135364431455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140119.

The product of its digits is 1296000, while the sum is 44.

Adding to 135364431455 its reverse (554134463531), we get a palindrome (689498894986).

The spelling of 135364431455 in words is "one hundred thirty-five billion, three hundred sixty-four million, four hundred thirty-one thousand, four hundred fifty-five".