135440414 has 4 divisors (see below), whose sum is σ = 203160624. Its totient is φ = 67720206.

The previous prime is 135440413. The next prime is 135440423. The reversal of 135440414 is 414044531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 414044531 = 269 ⋅1539199.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135440413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33860102 + ... + 33860105.

It is an arithmetic number, because the mean of its divisors is an integer number (50790156).

Almost surely, 2^135440414 is an apocalyptic number.

135440414 is a deficient number, since it is larger than the sum of its proper divisors (67720210).

135440414 is an equidigital number, since it uses as much as digits as its factorization.

135440414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67720209.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 135440414 is about 11637.8870075285. The cubic root of 135440414 is about 513.5500283571.

Adding to 135440414 its reverse (414044531), we get a palindrome (549484945).

The spelling of 135440414 in words is "one hundred thirty-five million, four hundred forty thousand, four hundred fourteen".