1153540343 has 2 divisors, whose sum is σ = 1153540344. Its totient is φ = 1153540342.

The previous prime is 1153540327. The next prime is 1153540373. The reversal of 1153540343 is 3430453511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1153540343 - 2⁴ = 1153540327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153540373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576770171 + 576770172.

It is an arithmetic number, because the mean of its divisors is an integer number (576770172).

Almost surely, 2^1153540343 is an apocalyptic number.

1153540343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153540343 is an equidigital number, since it uses as much as digits as its factorization.

1153540343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1153540343 is about 33963.8093122665. The cubic root of 1153540343 is about 1048.7635765230.

Adding to 1153540343 its reverse (3430453511), we get a palindrome (4583993854).

The spelling of 1153540343 in words is "one billion, one hundred fifty-three million, five hundred forty thousand, three hundred forty-three".