242142131 has 16 divisors (see below), whose sum is σ = 302496000. Its totient is φ = 188304480.

The previous prime is 242142113. The next prime is 242142139. The reversal of 242142131 is 131241242.

It is not a de Polignac number, because 242142131 - 2¹⁸ = 241879987 is a prime.

It is a super-2 number, since 2×242142131² = 117265623210442322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242142139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39245 + ... + 44993.

It is an arithmetic number, because the mean of its divisors is an integer number (18906000).

Almost surely, 2^242142131 is an apocalyptic number.

242142131 is a deficient number, since it is larger than the sum of its proper divisors (60353869).

242142131 is a wasteful number, since it uses less digits than its factorization.

242142131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314.

The product of its digits is 384, while the sum is 20.

The square root of 242142131 is about 15560.9167789048. The cubic root of 242142131 is about 623.2899438534.

Adding to 242142131 its reverse (131241242), we get a palindrome (373383373).

The spelling of 242142131 in words is "two hundred forty-two million, one hundred forty-two thousand, one hundred thirty-one".