242035631 has 4 divisors (see below), whose sum is σ = 249843264. Its totient is φ = 234228000.

The previous prime is 242035627. The next prime is 242035637. The reversal of 242035631 is 136530242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136530242 = 2 ⋅68265121.

It is a cyclic number.

It is not a de Polignac number, because 242035631 - 2² = 242035627 is a prime.

It is a super-2 number, since 2×242035631² = 117162493347136322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242035631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242035637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3903770 + ... + 3903831.

It is an arithmetic number, because the mean of its divisors is an integer number (62460816).

Almost surely, 2^242035631 is an apocalyptic number.

242035631 is a deficient number, since it is larger than the sum of its proper divisors (7807633).

242035631 is an equidigital number, since it uses as much as digits as its factorization.

242035631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7807632.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 242035631 is about 15557.4943676673. The cubic root of 242035631 is about 623.1985510929.

Adding to 242035631 its reverse (136530242), we get a palindrome (378565873).

The spelling of 242035631 in words is "two hundred forty-two million, thirty-five thousand, six hundred thirty-one".