135315968 has 20 divisors (see below), whose sum is σ = 270368670. Its totient is φ = 67657728.

The previous prime is 135315959. The next prime is 135315977. The reversal of 135315968 is 869513531.

It is an interprime number because it is at equal distance from previous prime (135315959) and next prime (135315977).

It can be written as a sum of positive squares in only one way, i.e., 135303424 + 12544 = 11632^2 + 112^2 .

It is a super-2 number, since 2×135315968² = 36620822391554048, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131633 + ... + 132656.

Almost surely, 2^135315968 is an apocalyptic number.

It is an amenable number.

135315968 is a deficient number, since it is larger than the sum of its proper divisors (135052702).

135315968 is an frugal number, since it uses more digits than its factorization.

135315968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264307 (or 264291 counting only the distinct ones).

The product of its digits is 97200, while the sum is 41.

The square root of 135315968 is about 11632.5391897040. The cubic root of 135315968 is about 513.3926926728.

The spelling of 135315968 in words is "one hundred thirty-five million, three hundred fifteen thousand, nine hundred sixty-eight".