1235434243 has 2 divisors, whose sum is σ = 1235434244. Its totient is φ = 1235434242.

The previous prime is 1235434223. The next prime is 1235434253. The reversal of 1235434243 is 3424345321.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3424345321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1235434243 - 2¹³ = 1235426051 is a prime.

It is not a weakly prime, because it can be changed into another prime (1235434223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617717121 + 617717122.

It is an arithmetic number, because the mean of its divisors is an integer number (617717122).

Almost surely, 2^1235434243 is an apocalyptic number.

1235434243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235434243 is an equidigital number, since it uses as much as digits as its factorization.

1235434243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 31.

The square root of 1235434243 is about 35148.7445437245. The cubic root of 1235434243 is about 1073.0168573551.

Adding to 1235434243 its reverse (3424345321), we get a palindrome (4659779564).

The spelling of 1235434243 in words is "one billion, two hundred thirty-five million, four hundred thirty-four thousand, two hundred forty-three".