243201150405 has 64 divisors (see below), whose sum is σ = 451322899200. Its totient is φ = 124132642560.

The previous prime is 243201150371. The next prime is 243201150407. The reversal of 243201150405 is 504051102342.

243201150405 is a `hidden beast` number, since 2 + 4 + 3 + 201 + 1 + 50 + 405 = 666.

It is not a de Polignac number, because 243201150405 - 2¹⁸ = 243200888261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243201150407) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94395 + ... + 703784.

It is an arithmetic number, because the mean of its divisors is an integer number (7051920300).

Almost surely, 2^243201150405 is an apocalyptic number.

It is an amenable number.

243201150405 is a deficient number, since it is larger than the sum of its proper divisors (208121748795).

243201150405 is a wasteful number, since it uses less digits than its factorization.

243201150405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798291 (or 798285 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 243201150405 its reverse (504051102342), we get a palindrome (747252252747).

The spelling of 243201150405 in words is "two hundred forty-three billion, two hundred one million, one hundred fifty thousand, four hundred five".