243221141157 has 16 divisors (see below), whose sum is σ = 330049536000. Its totient is φ = 159274389744.

The previous prime is 243221141143. The next prime is 243221141197. The reversal of 243221141157 is 751141122342.

It is not a de Polignac number, because 243221141157 - 2¹⁶ = 243221075621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243221141197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310807 + ... + 763572.

It is an arithmetic number, because the mean of its divisors is an integer number (20628096000).

Almost surely, 2^243221141157 is an apocalyptic number.

It is an amenable number.

243221141157 is a deficient number, since it is larger than the sum of its proper divisors (86828394843).

243221141157 is a wasteful number, since it uses less digits than its factorization.

243221141157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075720.

The product of its digits is 13440, while the sum is 33.

Adding to 243221141157 its reverse (751141122342), we get a palindrome (994362263499).

The spelling of 243221141157 in words is "two hundred forty-three billion, two hundred twenty-one million, one hundred forty-one thousand, one hundred fifty-seven".