1153154123 has 4 divisors (see below), whose sum is σ = 1257986328. Its totient is φ = 1048321920.

The previous prime is 1153154083. The next prime is 1153154129. The reversal of 1153154123 is 3214513511.

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 1153154123 - 2²⁴ = 1136376907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1153154092 and 1153154101.

It is not an unprimeable number, because it can be changed into a prime (1153154129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52416086 + ... + 52416107.

It is an arithmetic number, because the mean of its divisors is an integer number (314496582).

Almost surely, 2^1153154123 is an apocalyptic number.

1153154123 is a deficient number, since it is larger than the sum of its proper divisors (104832205).

1153154123 is a wasteful number, since it uses less digits than its factorization.

1153154123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104832204.

The product of its digits is 1800, while the sum is 26.

The square root of 1153154123 is about 33958.1230782857. The cubic root of 1153154123 is about 1048.6465169896.

Adding to 1153154123 its reverse (3214513511), we get a palindrome (4367667634).

The spelling of 1153154123 in words is "one billion, one hundred fifty-three million, one hundred fifty-four thousand, one hundred twenty-three".