236145357247 has 16 divisors (see below), whose sum is σ = 249211356160. Its totient is φ = 223143494112.

The previous prime is 236145357221. The next prime is 236145357271. The reversal of 236145357247 is 742753541632.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-236145357247 is a prime.

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 236145357247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (236145357277) 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, 33891358 + ... + 33898324.

It is an arithmetic number, because the mean of its divisors is an integer number (15575709760).

Almost surely, 2^236145357247 is an apocalyptic number.

236145357247 is a deficient number, since it is larger than the sum of its proper divisors (13065998913).

236145357247 is a wasteful number, since it uses less digits than its factorization.

236145357247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11302.

The product of its digits is 4233600, while the sum is 49.

Adding to 236145357247 its reverse (742753541632), we get a palindrome (978898898879).

The spelling of 236145357247 in words is "two hundred thirty-six billion, one hundred forty-five million, three hundred fifty-seven thousand, two hundred forty-seven".