1155623163 has 8 divisors (see below), whose sum is σ = 1542287376. Its totient is φ = 769687200.

The previous prime is 1155623143. The next prime is 1155623167. The reversal of 1155623163 is 3613265511.

1155623163 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1155623163 - 2⁶ = 1155623099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1155623167) 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, 178348 + ... + 184713.

It is an arithmetic number, because the mean of its divisors is an integer number (192785922).

Almost surely, 2^1155623163 is an apocalyptic number.

1155623163 is a deficient number, since it is larger than the sum of its proper divisors (386664213).

1155623163 is a wasteful number, since it uses less digits than its factorization.

1155623163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364125.

The product of its digits is 16200, while the sum is 33.

The square root of 1155623163 is about 33994.4578277107. The cubic root of 1155623163 is about 1049.3944090672.

Adding to 1155623163 its reverse (3613265511), we get a palindrome (4768888674).

The spelling of 1155623163 in words is "one billion, one hundred fifty-five million, six hundred twenty-three thousand, one hundred sixty-three".