242135031 has 8 divisors (see below), whose sum is σ = 339838720. Its totient is φ = 152927352.

The previous prime is 242135027. The next prime is 242135039. The reversal of 242135031 is 130531242.

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

It is not a de Polignac number, because 242135031 - 2² = 242135027 is a prime.

It is a super-2 number, since 2×242135031² = 117258746474741922, 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 = 242134989 and 242135007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242135039) 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, 2123935 + ... + 2124048.

It is an arithmetic number, because the mean of its divisors is an integer number (42479840).

Almost surely, 2^242135031 is an apocalyptic number.

242135031 is a deficient number, since it is larger than the sum of its proper divisors (97703689).

242135031 is a wasteful number, since it uses less digits than its factorization.

242135031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248005.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 242135031 is about 15560.6886415737. The cubic root of 242135031 is about 623.2838518365.

Adding to 242135031 its reverse (130531242), we get a palindrome (372666273).

The spelling of 242135031 in words is "two hundred forty-two million, one hundred thirty-five thousand, thirty-one".