135412534 has 4 divisors (see below), whose sum is σ = 203118804. Its totient is φ = 67706266.

The previous prime is 135412517. The next prime is 135412559. The reversal of 135412534 is 435214531.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33853132 + ... + 33853135.

It is an arithmetic number, because the mean of its divisors is an integer number (50779701).

Almost surely, 2^135412534 is an apocalyptic number.

135412534 is a deficient number, since it is larger than the sum of its proper divisors (67706270).

135412534 is an equidigital number, since it uses as much as digits as its factorization.

135412534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67706269.

The product of its digits is 7200, while the sum is 28.

The square root of 135412534 is about 11636.6891339418. The cubic root of 135412534 is about 513.5147883650.

The spelling of 135412534 in words is "one hundred thirty-five million, four hundred twelve thousand, five hundred thirty-four".