242125731 has 6 divisors (see below), whose sum is σ = 349737180. Its totient is φ = 161417148.

The previous prime is 242125729. The next prime is 242125753. The reversal of 242125731 is 137521242.

It is not a de Polignac number, because 242125731 - 2¹ = 242125729 is a prime.

It is a super-2 number, since 2×242125731² = 117249739224568722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242125695 and 242125704.

It is not an unprimeable number, because it can be changed into a prime (242125771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13451421 + ... + 13451438.

It is an arithmetic number, because the mean of its divisors is an integer number (58289530).

Almost surely, 2^242125731 is an apocalyptic number.

242125731 is a deficient number, since it is larger than the sum of its proper divisors (107611449).

242125731 is a wasteful number, since it uses less digits than its factorization.

242125731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26902865 (or 26902862 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 242125731 is about 15560.3898087419. The cubic root of 242125731 is about 623.2758719722.

Adding to 242125731 its reverse (137521242), we get a palindrome (379646973).

The spelling of 242125731 in words is "two hundred forty-two million, one hundred twenty-five thousand, seven hundred thirty-one".