1153632803 has 4 divisors (see below), whose sum is σ = 1157709528. Its totient is φ = 1149556080.

The previous prime is 1153632787. The next prime is 1153632811. The reversal of 1153632803 is 3082363511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3082363511 = 31 ⋅99431081.

It is a cyclic number.

It is not a de Polignac number, because 1153632803 - 2⁴ = 1153632787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1153632803.

It is not an unprimeable number, because it can be changed into a prime (1156632803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2037938 + ... + 2038503.

It is an arithmetic number, because the mean of its divisors is an integer number (289427382).

Almost surely, 2^1153632803 is an apocalyptic number.

1153632803 is a deficient number, since it is larger than the sum of its proper divisors (4076725).

1153632803 is an equidigital number, since it uses as much as digits as its factorization.

1153632803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076724.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1153632803 is about 33965.1704397313. The cubic root of 1153632803 is about 1048.7915963751.

The spelling of 1153632803 in words is "one billion, one hundred fifty-three million, six hundred thirty-two thousand, eight hundred three".