242113637 has 4 divisors (see below), whose sum is σ = 254856480. Its totient is φ = 229370796.

The previous prime is 242113603. The next prime is 242113657. The reversal of 242113637 is 736311242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242113637 - 2¹⁰ = 242112613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242113657) 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, 6371393 + ... + 6371430.

It is an arithmetic number, because the mean of its divisors is an integer number (63714120).

Almost surely, 2^242113637 is an apocalyptic number.

It is an amenable number.

242113637 is a deficient number, since it is larger than the sum of its proper divisors (12742843).

242113637 is a wasteful number, since it uses less digits than its factorization.

242113637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12742842.

The product of its digits is 6048, while the sum is 29.

The square root of 242113637 is about 15560.0011889460. The cubic root of 242113637 is about 623.2654944108.

Adding to 242113637 its reverse (736311242), we get a palindrome (978424879).

The spelling of 242113637 in words is "two hundred forty-two million, one hundred thirteen thousand, six hundred thirty-seven".