163523442 has 32 divisors (see below), whose sum is σ = 346840704. Its totient is φ = 51219200.

The previous prime is 163523441. The next prime is 163523449. The reversal of 163523442 is 244325361.

It is not an unprimeable number, because it can be changed into a prime (163523441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107467 + ... + 108977.

It is an arithmetic number, because the mean of its divisors is an integer number (10838772).

Almost surely, 2^163523442 is an apocalyptic number.

163523442 is an abundant number, since it is smaller than the sum of its proper divisors (183317262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163523442 is a wasteful number, since it uses less digits than its factorization.

163523442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594.

The product of its digits is 17280, while the sum is 30.

The square root of 163523442 is about 12787.6284744279. The cubic root of 163523442 is about 546.8396625961.

The spelling of 163523442 in words is "one hundred sixty-three million, five hundred twenty-three thousand, four hundred forty-two".