163240136 has 16 divisors (see below), whose sum is σ = 309232140. Its totient is φ = 80778240.

The previous prime is 163240127. The next prime is 163240157. The reversal of 163240136 is 631042361.

163240136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 161137636 + 2102500 = 12694^2 + 1450^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104405 + ... + 105956.

Almost surely, 2^163240136 is an apocalyptic number.

It is an amenable number.

163240136 is a deficient number, since it is larger than the sum of its proper divisors (145992004).

163240136 is a wasteful number, since it uses less digits than its factorization.

163240136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210464 (or 210460 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 163240136 is about 12776.5463252007. The cubic root of 163240136 is about 546.5236783142.

Adding to 163240136 its reverse (631042361), we get a palindrome (794282497).

The spelling of 163240136 in words is "one hundred sixty-three million, two hundred forty thousand, one hundred thirty-six".