242202131 has 4 divisors (see below), whose sum is σ = 244553712. Its totient is φ = 239850552.

The previous prime is 242202109. The next prime is 242202137. The reversal of 242202131 is 131202242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242202131 - 2¹⁰ = 242201107 is a prime.

It is a super-2 number, since 2×242202131² = 117323744521882322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242202137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175636 + ... + 1175841.

It is an arithmetic number, because the mean of its divisors is an integer number (61138428).

Almost surely, 2^242202131 is an apocalyptic number.

242202131 is a deficient number, since it is larger than the sum of its proper divisors (2351581).

242202131 is a wasteful number, since it uses less digits than its factorization.

242202131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351580.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 242202131 is about 15562.8445664666. The cubic root of 242202131 is about 623.3414209315.

Adding to 242202131 its reverse (131202242), we get a palindrome (373404373).

The spelling of 242202131 in words is "two hundred forty-two million, two hundred two thousand, one hundred thirty-one".