135542212 has 24 divisors (see below), whose sum is σ = 256874072. Its totient is φ = 62208000.

The previous prime is 135542167. The next prime is 135542221. The reversal of 135542212 is 212245531.

It can be written as a sum of positive squares in 4 ways, for example, as 7761796 + 127780416 = 2786^2 + 11304^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2212 + ... + 16612.

Almost surely, 2^135542212 is an apocalyptic number.

It is an amenable number.

135542212 is a deficient number, since it is larger than the sum of its proper divisors (121331860).

135542212 is a wasteful number, since it uses less digits than its factorization.

135542212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14599 (or 14597 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 135542212 is about 11642.2597462864. The cubic root of 135542212 is about 513.6786587811.

Adding to 135542212 its reverse (212245531), we get a palindrome (347787743).

The spelling of 135542212 in words is "one hundred thirty-five million, five hundred forty-two thousand, two hundred twelve".