163503241 has 8 divisors (see below), whose sum is σ = 181291968. Its totient is φ = 146202000.

The previous prime is 163503239. The next prime is 163503257. The reversal of 163503241 is 142305361.

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 163503241 - 2¹ = 163503239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163503281) 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, 121165 + ... + 122506.

It is an arithmetic number, because the mean of its divisors is an integer number (22661496).

Almost surely, 2^163503241 is an apocalyptic number.

163503241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163503241 is a deficient number, since it is larger than the sum of its proper divisors (17788727).

163503241 is a wasteful number, since it uses less digits than its factorization.

163503241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243743.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 163503241 is about 12786.8385850452. The cubic root of 163503241 is about 546.8171435762.

It can be divided in two parts, 16350 and 3241, that added together give a palindrome (19591).

The spelling of 163503241 in words is "one hundred sixty-three million, five hundred three thousand, two hundred forty-one".