135252231466 has 24 divisors (see below), whose sum is σ = 223836825024. Its totient is φ = 60787441440.

The previous prime is 135252231461. The next prime is 135252231467. The reversal of 135252231466 is 664132252531.

It is a super-2 number, since 2×135252231466² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135252231461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213810 + ... + 562333.

It is an arithmetic number, because the mean of its divisors is an integer number (9326534376).

Almost surely, 2^135252231466 is an apocalyptic number.

135252231466 is a deficient number, since it is larger than the sum of its proper divisors (88584593558).

135252231466 is an equidigital number, since it uses as much as digits as its factorization.

135252231466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776334 (or 776245 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

Adding to 135252231466 its reverse (664132252531), we get a palindrome (799384483997).

The spelling of 135252231466 in words is "one hundred thirty-five billion, two hundred fifty-two million, two hundred thirty-one thousand, four hundred sixty-six".