242130142 has 4 divisors (see below), whose sum is σ = 363195216. Its totient is φ = 121065070.

The previous prime is 242130137. The next prime is 242130157. The reversal of 242130142 is 241031242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241031242 = 2 ⋅120515621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60532534 + ... + 60532537.

It is an arithmetic number, because the mean of its divisors is an integer number (90798804).

Almost surely, 2^242130142 is an apocalyptic number.

242130142 is a deficient number, since it is larger than the sum of its proper divisors (121065074).

242130142 is a wasteful number, since it uses less digits than its factorization.

242130142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121065073.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 242130142 is about 15560.5315461908. The cubic root of 242130142 is about 623.2796568559.

Adding to 242130142 its reverse (241031242), we get a palindrome (483161384).

The spelling of 242130142 in words is "two hundred forty-two million, one hundred thirty thousand, one hundred forty-two".