1153534123 has 8 divisors (see below), whose sum is σ = 1318542848. Its totient is φ = 988579944.

The previous prime is 1153534103. The next prime is 1153534127. The reversal of 1153534123 is 3214353511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1153534123 - 2⁹ = 1153533611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1153534091 and 1153534100.

It is not an unprimeable number, because it can be changed into a prime (1153534127) 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, 54190 + ... + 72412.

It is an arithmetic number, because the mean of its divisors is an integer number (164817856).

Almost surely, 2^1153534123 is an apocalyptic number.

1153534123 is a deficient number, since it is larger than the sum of its proper divisors (165008725).

1153534123 is an equidigital number, since it uses as much as digits as its factorization.

1153534123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27273.

The product of its digits is 5400, while the sum is 28.

The square root of 1153534123 is about 33963.7177440869. The cubic root of 1153534123 is about 1048.7616915084.

Adding to 1153534123 its reverse (3214353511), we get a palindrome (4367887634).

The spelling of 1153534123 in words is "one billion, one hundred fifty-three million, five hundred thirty-four thousand, one hundred twenty-three".