163782641 has 32 divisors (see below), whose sum is σ = 205701120. Its totient is φ = 128390400.

The previous prime is 163782613. The next prime is 163782719. The reversal of 163782641 is 146287361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163782641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163782595 and 163782604.

It is not an unprimeable number, because it can be changed into a prime (163782601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109400 + ... + 110886.

It is an arithmetic number, because the mean of its divisors is an integer number (6428160).

Almost surely, 2^163782641 is an apocalyptic number.

163782641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163782641 is a deficient number, since it is larger than the sum of its proper divisors (41918479).

163782641 is a wasteful number, since it uses less digits than its factorization.

163782641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565.

The product of its digits is 48384, while the sum is 38.

The square root of 163782641 is about 12797.7592179256. The cubic root of 163782641 is about 547.1284396823.

The spelling of 163782641 in words is "one hundred sixty-three million, seven hundred eighty-two thousand, six hundred forty-one".