1153340343 has 8 divisors (see below), whose sum is σ = 1708652400. Its totient is φ = 768893544.

The previous prime is 1153340329. The next prime is 1153340347. The reversal of 1153340343 is 3430433511.

It is not a de Polignac number, because 1153340343 - 2¹³ = 1153332151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 42716309 = 1153340343 / (1 + 1 + 5 + 3 + 3 + 4 + 0 + 3 + 4 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153340347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21358128 + ... + 21358181.

It is an arithmetic number, because the mean of its divisors is an integer number (213581550).

Almost surely, 2^1153340343 is an apocalyptic number.

1153340343 is a deficient number, since it is larger than the sum of its proper divisors (555312057).

1153340343 is an equidigital number, since it uses as much as digits as its factorization.

1153340343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42716318 (or 42716312 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 1153340343 is about 33960.8648741459. The cubic root of 1153340343 is about 1048.7029617267.

Adding to 1153340343 its reverse (3430433511), we get a palindrome (4583773854).

The spelling of 1153340343 in words is "one billion, one hundred fifty-three million, three hundred forty thousand, three hundred forty-three".