536121243 has 12 divisors (see below), whose sum is σ = 885025648. Its totient is φ = 306354960.

The previous prime is 536121241. The next prime is 536121247. The reversal of 536121243 is 342121635.

536121243 is a `hidden beast` number, since 5 + 3 + 612 + 1 + 2 + 43 = 666.

It is not a de Polignac number, because 536121243 - 2¹ = 536121241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (536121241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4254868 + ... + 4254993.

Almost surely, 2^536121243 is an apocalyptic number.

536121243 is a deficient number, since it is larger than the sum of its proper divisors (348904405).

536121243 is a wasteful number, since it uses less digits than its factorization.

536121243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8509874 (or 8509871 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 536121243 is about 23154.2921075122. The cubic root of 536121243 is about 812.3708635159.

Adding to 536121243 its reverse (342121635), we get a palindrome (878242878).

The spelling of 536121243 in words is "five hundred thirty-six million, one hundred twenty-one thousand, two hundred forty-three".