242241997 has 4 divisors (see below), whose sum is σ = 248789116. Its totient is φ = 235694880.

The previous prime is 242241991. The next prime is 242242037. The reversal of 242241997 is 799142242.

242241997 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.

It can be written as a sum of positive squares in 2 ways, for example, as 222934761 + 19307236 = 14931^2 + 4394^2 .

It is a cyclic number.

It is not a de Polignac number, because 242241997 - 2⁷ = 242241869 is a prime.

It is a super-2 number, since 2×242241997² = 117362370221096018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242241991) 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, 3273504 + ... + 3273577.

It is an arithmetic number, because the mean of its divisors is an integer number (62197279).

Almost surely, 2^242241997 is an apocalyptic number.

It is an amenable number.

242241997 is a deficient number, since it is larger than the sum of its proper divisors (6547119).

242241997 is an equidigital number, since it uses as much as digits as its factorization.

242241997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547118.

The product of its digits is 72576, while the sum is 40.

The square root of 242241997 is about 15564.1253207496. The cubic root of 242241997 is about 623.3756193173.

The spelling of 242241997 in words is "two hundred forty-two million, two hundred forty-one thousand, nine hundred ninety-seven".