1155648743 has 4 divisors (see below), whose sum is σ = 1160444208. Its totient is φ = 1150853280.

The previous prime is 1155648733. The next prime is 1155648751. The reversal of 1155648743 is 3478465511.

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 1155648743 - 2⁴ = 1155648727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1155648694 and 1155648703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155648733) 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, 2397371 + ... + 2397852.

It is an arithmetic number, because the mean of its divisors is an integer number (290111052).

Almost surely, 2^1155648743 is an apocalyptic number.

1155648743 is a deficient number, since it is larger than the sum of its proper divisors (4795465).

1155648743 is an equidigital number, since it uses as much as digits as its factorization.

1155648743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795464.

The product of its digits is 403200, while the sum is 44.

The square root of 1155648743 is about 33994.8340634279. The cubic root of 1155648743 is about 1049.4021518770.

The spelling of 1155648743 in words is "one billion, one hundred fifty-five million, six hundred forty-eight thousand, seven hundred forty-three".