135423101 has 4 divisors (see below), whose sum is σ = 147734304. Its totient is φ = 123111900.

The previous prime is 135423091. The next prime is 135423107. The reversal of 135423101 is 101324531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135423101 - 2¹⁸ = 135160957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135423107) 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, 6155585 + ... + 6155606.

It is an arithmetic number, because the mean of its divisors is an integer number (36933576).

Almost surely, 2^135423101 is an apocalyptic number.

135423101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

135423101 is a deficient number, since it is larger than the sum of its proper divisors (12311203).

135423101 is a wasteful number, since it uses less digits than its factorization.

135423101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12311202.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 135423101 is about 11637.1431631651. The cubic root of 135423101 is about 513.5281454979.

Adding to 135423101 its reverse (101324531), we get a palindrome (236747632).

The spelling of 135423101 in words is "one hundred thirty-five million, four hundred twenty-three thousand, one hundred one".