135517814 has 4 divisors (see below), whose sum is σ = 203276724. Its totient is φ = 67758906.

The previous prime is 135517813. The next prime is 135517843. The reversal of 135517814 is 418715531.

135517814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×135517814² = 36730155822677192, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135517813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33879452 + ... + 33879455.

It is an arithmetic number, because the mean of its divisors is an integer number (50819181).

Almost surely, 2^135517814 is an apocalyptic number.

135517814 is a deficient number, since it is larger than the sum of its proper divisors (67758910).

135517814 is an equidigital number, since it uses as much as digits as its factorization.

135517814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67758909.

The product of its digits is 16800, while the sum is 35.

The square root of 135517814 is about 11641.2118784944. The cubic root of 135517814 is about 513.6478357044.

The spelling of 135517814 in words is "one hundred thirty-five million, five hundred seventeen thousand, eight hundred fourteen".