163503242 has 16 divisors (see below), whose sum is σ = 280674240. Its totient is φ = 69977088.

The previous prime is 163503239. The next prime is 163503257. The reversal of 163503242 is 242305361.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3173 + ... + 18359.

It is an arithmetic number, because the mean of its divisors is an integer number (17542140).

Almost surely, 2^163503242 is an apocalyptic number.

163503242 is a deficient number, since it is larger than the sum of its proper divisors (117170998).

163503242 is a wasteful number, since it uses less digits than its factorization.

163503242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15965.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 163503242 is about 12786.8386241479. The cubic root of 163503242 is about 546.8171446910.

The spelling of 163503242 in words is "one hundred sixty-three million, five hundred three thousand, two hundred forty-two".