242787163 has 4 divisors (see below), whose sum is σ = 246410920. Its totient is φ = 239163408.

The previous prime is 242787161. The next prime is 242787197. The reversal of 242787163 is 361787242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242787163 - 2¹ = 242787161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242787161) 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, 1811778 + ... + 1811911.

It is an arithmetic number, because the mean of its divisors is an integer number (61602730).

Almost surely, 2^242787163 is an apocalyptic number.

242787163 is a deficient number, since it is larger than the sum of its proper divisors (3623757).

242787163 is an equidigital number, since it uses as much as digits as its factorization.

242787163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623756.

The product of its digits is 112896, while the sum is 40.

The square root of 242787163 is about 15581.6290226664. The cubic root of 242787163 is about 623.8429048914.

The spelling of 242787163 in words is "two hundred forty-two million, seven hundred eighty-seven thousand, one hundred sixty-three".