242835997 has 4 divisors (see below), whose sum is σ = 242867196. Its totient is φ = 242804800.

The previous prime is 242835991. The next prime is 242836003. The reversal of 242835997 is 799538242.

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 is an interprime number because it is at equal distance from previous prime (242835991) and next prime (242836003).

It can be written as a sum of positive squares in 2 ways, for example, as 216354681 + 26481316 = 14709^2 + 5146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242835997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242835997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242835991) 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, 6747 + ... + 23047.

It is an arithmetic number, because the mean of its divisors is an integer number (60716799).

Almost surely, 2^242835997 is an apocalyptic number.

It is an amenable number.

242835997 is a deficient number, since it is larger than the sum of its proper divisors (31199).

242835997 is a wasteful number, since it uses less digits than its factorization.

242835997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31198.

The product of its digits is 1088640, while the sum is 49.

The square root of 242835997 is about 15583.1959815694. The cubic root of 242835997 is about 623.8847284949.

The spelling of 242835997 in words is "two hundred forty-two million, eight hundred thirty-five thousand, nine hundred ninety-seven".