135279963 has 40 divisors (see below), whose sum is σ = 248733408. Its totient is φ = 71352576.

The previous prime is 135279941. The next prime is 135279967. The reversal of 135279963 is 369972531.

It is not a de Polignac number, because 135279963 - 2⁶ = 135279899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135279967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1806 + ... + 16547.

Almost surely, 2^135279963 is an apocalyptic number.

135279963 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

135279963 is a deficient number, since it is larger than the sum of its proper divisors (113453445).

135279963 is a wasteful number, since it uses less digits than its factorization.

135279963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18385 (or 18376 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The square root of 135279963 is about 11630.9914882610. The cubic root of 135279963 is about 513.3471539635.

The spelling of 135279963 in words is "one hundred thirty-five million, two hundred seventy-nine thousand, nine hundred sixty-three".