242960257 has 4 divisors (see below), whose sum is σ = 243288000. Its totient is φ = 242632516.

The previous prime is 242960233. The next prime is 242960281. The reversal of 242960257 is 752069242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (242960233) and next prime (242960281).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242960257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242960227) 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, 162757 + ... + 164242.

It is an arithmetic number, because the mean of its divisors is an integer number (60822000).

Almost surely, 2^242960257 is an apocalyptic number.

It is an amenable number.

242960257 is a deficient number, since it is larger than the sum of its proper divisors (327743).

242960257 is an equidigital number, since it uses as much as digits as its factorization.

242960257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327742.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 242960257 is about 15587.1824586742. The cubic root of 242960257 is about 623.9911249902.

The spelling of 242960257 in words is "two hundred forty-two million, nine hundred sixty thousand, two hundred fifty-seven".