135642412552231 has 8 divisors (see below), whose sum is σ = 149473570898960. Its totient is φ = 122296558007232.

The previous prime is 135642412552219. The next prime is 135642412552249. The reversal of 135642412552231 is 132255214246531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135642412552231 - 2⁷ = 135642412552103 is a prime.

It is a super-2 number, since 2×135642412552231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135642412552201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121325949846 + ... + 121325950963.

It is an arithmetic number, because the mean of its divisors is an integer number (18684196362370).

Almost surely, 2^{135642412552231} is an apocalyptic number.

135642412552231 is a deficient number, since it is larger than the sum of its proper divisors (13831158346729).

135642412552231 is a wasteful number, since it uses less digits than its factorization.

135642412552231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242651900865.

The product of its digits is 1728000, while the sum is 46.

Adding to 135642412552231 its reverse (132255214246531), we get a palindrome (267897626798762).

The spelling of 135642412552231 in words is "one hundred thirty-five trillion, six hundred forty-two billion, four hundred twelve million, five hundred fifty-two thousand, two hundred thirty-one".