163723533 has 4 divisors (see below), whose sum is σ = 218298048. Its totient is φ = 109149020.

The previous prime is 163723529. The next prime is 163723541. The reversal of 163723533 is 335327361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163723533 - 2² = 163723529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163723494 and 163723503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163723333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27287253 + ... + 27287258.

It is an arithmetic number, because the mean of its divisors is an integer number (54574512).

Almost surely, 2^163723533 is an apocalyptic number.

It is an amenable number.

163723533 is a deficient number, since it is larger than the sum of its proper divisors (54574515).

163723533 is an equidigital number, since it uses as much as digits as its factorization.

163723533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54574514.

The product of its digits is 34020, while the sum is 33.

The square root of 163723533 is about 12795.4496990141. The cubic root of 163723533 is about 547.0626134979.

The spelling of 163723533 in words is "one hundred sixty-three million, seven hundred twenty-three thousand, five hundred thirty-three".