5435021243 has 4 divisors (see below), whose sum is σ = 5438392368. Its totient is φ = 5431650120.

The previous prime is 5435021239. The next prime is 5435021257. The reversal of 5435021243 is 3421205345.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5435021243 - 2² = 5435021239 is a prime.

It is a super-2 number, since 2×5435021243² = 59078911823722530098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5435026243) 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, 1683143 + ... + 1686368.

It is an arithmetic number, because the mean of its divisors is an integer number (1359598092).

Almost surely, 2^5435021243 is an apocalyptic number.

5435021243 is a deficient number, since it is larger than the sum of its proper divisors (3371125).

5435021243 is a wasteful number, since it uses less digits than its factorization.

5435021243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371124.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 5435021243 is about 73722.5965562798. The cubic root of 5435021243 is about 1758.1951671933.

Adding to 5435021243 its reverse (3421205345), we get a palindrome (8856226588).

The spelling of 5435021243 in words is "five billion, four hundred thirty-five million, twenty-one thousand, two hundred forty-three".