1153054403 has 4 divisors (see below), whose sum is σ = 1153711680. Its totient is φ = 1152397128.

The previous prime is 1153054381. The next prime is 1153054411. The reversal of 1153054403 is 3044503511.

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 1153054403 - 2¹² = 1153050307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153054453) 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, 326000 + ... + 329517.

It is an arithmetic number, because the mean of its divisors is an integer number (288427920).

Almost surely, 2^1153054403 is an apocalyptic number.

1153054403 is a deficient number, since it is larger than the sum of its proper divisors (657277).

1153054403 is an equidigital number, since it uses as much as digits as its factorization.

1153054403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657276.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1153054403 is about 33956.6547675121. The cubic root of 1153054403 is about 1048.6162885802.

Adding to 1153054403 its reverse (3044503511), we get a palindrome (4197557914).

The spelling of 1153054403 in words is "one billion, one hundred fifty-three million, fifty-four thousand, four hundred three".