242515031 has 8 divisors (see below), whose sum is σ = 278486400. Its totient is φ = 208864440.

The previous prime is 242515019. The next prime is 242515037. The reversal of 242515031 is 130515242.

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 242515031 - 2¹⁰ = 242514007 is a prime.

It is a super-2 number, since 2×242515031² = 117627080521861922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242514988 and 242515006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242515037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579971 + ... + 580388.

It is an arithmetic number, because the mean of its divisors is an integer number (34810800).

Almost surely, 2^242515031 is an apocalyptic number.

242515031 is a deficient number, since it is larger than the sum of its proper divisors (35971369).

242515031 is a wasteful number, since it uses less digits than its factorization.

242515031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160389.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 242515031 is about 15572.8941112434. The cubic root of 242515031 is about 623.6097362129.

The spelling of 242515031 in words is "two hundred forty-two million, five hundred fifteen thousand, thirty-one".