242497753 has 8 divisors (see below), whose sum is σ = 247069256. Its totient is φ = 237945600.

The previous prime is 242497693. The next prime is 242497777. The reversal of 242497753 is 357794242.

It can be written as a sum of positive squares in 4 ways, for example, as 788544 + 241709209 = 888^2 + 15547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242497753 - 2¹⁷ = 242366681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242497153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21823 + ... + 31003.

It is an arithmetic number, because the mean of its divisors is an integer number (30883657).

Almost surely, 2^242497753 is an apocalyptic number.

It is an amenable number.

242497753 is a deficient number, since it is larger than the sum of its proper divisors (4571503).

242497753 is an equidigital number, since it uses as much as digits as its factorization.

242497753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9675.

The product of its digits is 423360, while the sum is 43.

The square root of 242497753 is about 15572.3393554084. The cubic root of 242497753 is about 623.5949261551.

The spelling of 242497753 in words is "two hundred forty-two million, four hundred ninety-seven thousand, seven hundred fifty-three".