135142052 has 12 divisors (see below), whose sum is σ = 236918220. Its totient is φ = 67451136.

The previous prime is 135141983. The next prime is 135142057. The reversal of 135142052 is 250241531.

It can be written as a sum of positive squares in 2 ways, for example, as 75759616 + 59382436 = 8704^2 + 7706^2 .

It is not an unprimeable number, because it can be changed into a prime (135142057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27413 + ... + 31964.

It is an arithmetic number, because the mean of its divisors is an integer number (19743185).

Almost surely, 2^135142052 is an apocalyptic number.

It is an amenable number.

135142052 is a deficient number, since it is larger than the sum of its proper divisors (101776168).

135142052 is a wasteful number, since it uses less digits than its factorization.

135142052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59950 (or 59948 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 135142052 is about 11625.0613761821. The cubic root of 135142052 is about 513.1726509326.

Adding to 135142052 its reverse (250241531), we get a palindrome (385383583).

The spelling of 135142052 in words is "one hundred thirty-five million, one hundred forty-two thousand, fifty-two".