135340142 has 32 divisors (see below), whose sum is σ = 242956800. Its totient is φ = 55284768.

The previous prime is 135340109. The next prime is 135340157. The reversal of 135340142 is 241043531.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121484 + ... + 122592.

It is an arithmetic number, because the mean of its divisors is an integer number (7592400).

Almost surely, 2^135340142 is an apocalyptic number.

135340142 is a deficient number, since it is larger than the sum of its proper divisors (107616658).

135340142 is a wasteful number, since it uses less digits than its factorization.

135340142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 135340142 is about 11633.5782113673. The cubic root of 135340142 is about 513.4232631373.

Adding to 135340142 its reverse (241043531), we get a palindrome (376383673).

The spelling of 135340142 in words is "one hundred thirty-five million, three hundred forty thousand, one hundred forty-two".