135418 has 4 divisors (see below), whose sum is σ = 203130. Its totient is φ = 67708.

The previous prime is 135409. The next prime is 135427. The reversal of 135418 is 814531.

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

It is an interprime number because it is at equal distance from previous prime (135409) and next prime (135427).

It can be written as a sum of positive squares in only one way, i.e., 134689 + 729 = 367^2 + 27^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33853 + ... + 33856.

2¹³⁵⁴¹⁸ is an apocalyptic number.

135418 is a deficient number, since it is larger than the sum of its proper divisors (67712).

135418 is an equidigital number, since it uses as much as digits as its factorization.

135418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67711.

The product of its digits is 480, while the sum is 22.

The square root of 135418 is about 367.9918477358. The cubic root of 135418 is about 51.3521697706.

Adding to 135418 its reverse (814531), we get a palindrome (949949).

The spelling of 135418 in words is "one hundred thirty-five thousand, four hundred eighteen".