135240434434 has 24 divisors (see below), whose sum is σ = 236649319308. Its totient is φ = 57795978240.

The previous prime is 135240434431. The next prime is 135240434467. The reversal of 135240434434 is 434434042531.

It can be written as a sum of positive squares in 2 ways, for example, as 126675487225 + 8564947209 = 355915^2 + 92547^2 .

It is a junction number, because it is equal to n+sod(n) for n = 135240434393 and 135240434402.

It is not an unprimeable number, because it can be changed into a prime (135240434431) 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, 1920087 + ... + 1989274.

Almost surely, 2^135240434434 is an apocalyptic number.

135240434434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

135240434434 is a deficient number, since it is larger than the sum of its proper divisors (101408884874).

135240434434 is a wasteful number, since it uses less digits than its factorization.

135240434434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909730 (or 3909723 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 37.

Adding to 135240434434 its reverse (434434042531), we get a palindrome (569674476965).

The spelling of 135240434434 in words is "one hundred thirty-five billion, two hundred forty million, four hundred thirty-four thousand, four hundred thirty-four".