135275642 has 4 divisors (see below), whose sum is σ = 202913466. Its totient is φ = 67637820.

The previous prime is 135275617. The next prime is 135275659. The reversal of 135275642 is 246572531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 246572531 = 827 ⋅298153.

It can be written as a sum of positive squares in only one way, i.e., 107723641 + 27552001 = 10379^2 + 5249^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33818909 + ... + 33818912.

Almost surely, 2^135275642 is an apocalyptic number.

135275642 is a deficient number, since it is larger than the sum of its proper divisors (67637824).

135275642 is an equidigital number, since it uses as much as digits as its factorization.

135275642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67637823.

The product of its digits is 50400, while the sum is 35.

The square root of 135275642 is about 11630.8057330522. The cubic root of 135275642 is about 513.3416882694.

The spelling of 135275642 in words is "one hundred thirty-five million, two hundred seventy-five thousand, six hundred forty-two".