163651133 has 8 divisors (see below), whose sum is σ = 167581440. Its totient is φ = 159739600.

The previous prime is 163651127. The next prime is 163651157. The reversal of 163651133 is 331156361.

163651133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 163651133 - 2²⁴ = 146873917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163651096 and 163651105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163651193) 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, 13808 + ... + 22758.

It is an arithmetic number, because the mean of its divisors is an integer number (20947680).

Almost surely, 2^163651133 is an apocalyptic number.

It is an amenable number.

163651133 is a deficient number, since it is larger than the sum of its proper divisors (3930307).

163651133 is an equidigital number, since it uses as much as digits as its factorization.

163651133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9387.

The product of its digits is 4860, while the sum is 29.

The square root of 163651133 is about 12792.6202554442. The cubic root of 163651133 is about 546.9819629603.

The spelling of 163651133 in words is "one hundred sixty-three million, six hundred fifty-one thousand, one hundred thirty-three".