242164249 has 4 divisors (see below), whose sum is σ = 242195380. Its totient is φ = 242133120.

The previous prime is 242164243. The next prime is 242164277. The reversal of 242164249 is 942461242.

242164249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 122655625 + 119508624 = 11075^2 + 10932^2 .

It is a cyclic number.

It is not a de Polignac number, because 242164249 - 2⁹ = 242163737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242164243) 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, 7297 + ... + 23185.

It is an arithmetic number, because the mean of its divisors is an integer number (60548845).

Almost surely, 2^242164249 is an apocalyptic number.

It is an amenable number.

242164249 is a deficient number, since it is larger than the sum of its proper divisors (31131).

242164249 is a wasteful number, since it uses less digits than its factorization.

242164249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31130.

The product of its digits is 27648, while the sum is 34.

The square root of 242164249 is about 15561.6274534510. The cubic root of 242164249 is about 623.3089210097.

The spelling of 242164249 in words is "two hundred forty-two million, one hundred sixty-four thousand, two hundred forty-nine".