135856963 has 8 divisors (see below), whose sum is σ = 148985856. Its totient is φ = 122857800.

The previous prime is 135856957. The next prime is 135856969. The reversal of 135856963 is 369658531.

It is an interprime number because it is at equal distance from previous prime (135856957) and next prime (135856969).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135856963 - 2⁹ = 135856451 is a prime.

It is a super-2 number, since 2×135856963² = 36914228791166738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135856969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30231 + ... + 34432.

It is an arithmetic number, because the mean of its divisors is an integer number (18623232).

Almost surely, 2^135856963 is an apocalyptic number.

135856963 is a deficient number, since it is larger than the sum of its proper divisors (13128893).

135856963 is a wasteful number, since it uses less digits than its factorization.

135856963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64865.

The product of its digits is 583200, while the sum is 46.

The square root of 135856963 is about 11655.7695155661. The cubic root of 135856963 is about 514.0759664552.

The spelling of 135856963 in words is "one hundred thirty-five million, eight hundred fifty-six thousand, nine hundred sixty-three".