135023434 has 32 divisors (see below), whose sum is σ = 256023936. Its totient is φ = 51969600.

The previous prime is 135023419. The next prime is 135023437. The reversal of 135023434 is 434320531.

It is a junction number, because it is equal to n+sod(n) for n = 135023399 and 135023408.

It is not an unprimeable number, because it can be changed into a prime (135023437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3292 + ... + 16759.

It is an arithmetic number, because the mean of its divisors is an integer number (8000748).

Almost surely, 2^135023434 is an apocalyptic number.

135023434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

135023434 is a deficient number, since it is larger than the sum of its proper divisors (121000502).

135023434 is a wasteful number, since it uses less digits than its factorization.

135023434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20110.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 135023434 is about 11619.9584336606. The cubic root of 135023434 is about 513.0224649348.

Adding to 135023434 its reverse (434320531), we get a palindrome (569343965).

The spelling of 135023434 in words is "one hundred thirty-five million, twenty-three thousand, four hundred thirty-four".