135462631423 has 4 divisors (see below), whose sum is σ = 154814435920. Its totient is φ = 116110826928.

The previous prime is 135462631357. The next prime is 135462631429. The reversal of 135462631423 is 324136264531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324136264531 = 1009 ⋅321245059.

It is a cyclic number.

It is not a de Polignac number, because 135462631423 - 2¹⁷ = 135462500351 is a prime.

It is a super-3 number, since 3×135462631423³ (a number of 34 digits) contains 333 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 (135462631429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9675902238 + ... + 9675902251.

It is an arithmetic number, because the mean of its divisors is an integer number (38703608980).

Almost surely, 2^135462631423 is an apocalyptic number.

135462631423 is a deficient number, since it is larger than the sum of its proper divisors (19351804497).

135462631423 is an equidigital number, since it uses as much as digits as its factorization.

135462631423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19351804496.

The product of its digits is 311040, while the sum is 40.

Adding to 135462631423 its reverse (324136264531), we get a palindrome (459598895954).

The spelling of 135462631423 in words is "one hundred thirty-five billion, four hundred sixty-two million, six hundred thirty-one thousand, four hundred twenty-three".