1155136343 has 4 divisors (see below), whose sum is σ = 1179713760. Its totient is φ = 1130558928.

The previous prime is 1155136309. The next prime is 1155136351. The reversal of 1155136343 is 3436315511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3436315511 = 38557 ⋅89123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155136343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155136393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12288638 + ... + 12288731.

It is an arithmetic number, because the mean of its divisors is an integer number (294928440).

Almost surely, 2^1155136343 is an apocalyptic number.

1155136343 is a deficient number, since it is larger than the sum of its proper divisors (24577417).

1155136343 is an equidigital number, since it uses as much as digits as its factorization.

1155136343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24577416.

The product of its digits is 16200, while the sum is 32.

The square root of 1155136343 is about 33987.2967886533. The cubic root of 1155136343 is about 1049.2470317458.

The spelling of 1155136343 in words is "one billion, one hundred fifty-five million, one hundred thirty-six thousand, three hundred forty-three".