242801537 has 4 divisors (see below), whose sum is σ = 264874416. Its totient is φ = 220728660.

The previous prime is 242801509. The next prime is 242801563. The reversal of 242801537 is 735108242.

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 242801537 - 2⁶ = 242801473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242801567) 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, 11036423 + ... + 11036444.

It is an arithmetic number, because the mean of its divisors is an integer number (66218604).

Almost surely, 2^242801537 is an apocalyptic number.

It is an amenable number.

242801537 is a deficient number, since it is larger than the sum of its proper divisors (22072879).

242801537 is a wasteful number, since it uses less digits than its factorization.

242801537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22072878.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 242801537 is about 15582.0902641462. The cubic root of 242801537 is about 623.8552160049.

Adding to 242801537 its reverse (735108242), we get a palindrome (977909779).

The spelling of 242801537 in words is "two hundred forty-two million, eight hundred one thousand, five hundred thirty-seven".