242415271 has 4 divisors (see below), whose sum is σ = 277046032. Its totient is φ = 207784512.

The previous prime is 242415259. The next prime is 242415287. The reversal of 242415271 is 172514242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172514242 = 2 ⋅86257121.

It is a cyclic number.

It is not a de Polignac number, because 242415271 - 2⁹ = 242414759 is a prime.

It is a super-2 number, since 2×242415271² = 117530327228006882, 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 (242715271) 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, 17315370 + ... + 17315383.

It is an arithmetic number, because the mean of its divisors is an integer number (69261508).

Almost surely, 2^242415271 is an apocalyptic number.

242415271 is a deficient number, since it is larger than the sum of its proper divisors (34630761).

242415271 is an equidigital number, since it uses as much as digits as its factorization.

242415271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34630760.

The product of its digits is 4480, while the sum is 28.

The square root of 242415271 is about 15569.6907804876. The cubic root of 242415271 is about 623.5242159611.

The spelling of 242415271 in words is "two hundred forty-two million, four hundred fifteen thousand, two hundred seventy-one".