135252231443 has 8 divisors (see below), whose sum is σ = 162709451520. Its totient is φ = 109828879560.

The previous prime is 135252231349. The next prime is 135252231449. The reversal of 135252231443 is 344132252531.

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 135252231443 - 2²⁴ = 135235454227 is a prime.

It is a super-2 number, since 2×135252231443² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135252231449) 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, 508466903 + ... + 508467168.

It is an arithmetic number, because the mean of its divisors is an integer number (20338681440).

Almost surely, 2^135252231443 is an apocalyptic number.

135252231443 is a deficient number, since it is larger than the sum of its proper divisors (27457220077).

135252231443 is a wasteful number, since it uses less digits than its factorization.

135252231443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016934097.

The product of its digits is 86400, while the sum is 35.

Adding to 135252231443 its reverse (344132252531), we get a palindrome (479384483974).

The spelling of 135252231443 in words is "one hundred thirty-five billion, two hundred fifty-two million, two hundred thirty-one thousand, four hundred forty-three".