1154163803 has 4 divisors (see below), whose sum is σ = 1242945648. Its totient is φ = 1065381960.

The previous prime is 1154163793. The next prime is 1154163833. The reversal of 1154163803 is 3083614511.

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 1154163803 - 2²⁴ = 1137386587 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 1154163803.

It is not an unprimeable number, because it can be changed into a prime (1154163833) 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, 44390903 + ... + 44390928.

It is an arithmetic number, because the mean of its divisors is an integer number (310736412).

Almost surely, 2^1154163803 is an apocalyptic number.

1154163803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1154163803 is a deficient number, since it is larger than the sum of its proper divisors (88781845).

1154163803 is an equidigital number, since it uses as much as digits as its factorization.

1154163803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88781844.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1154163803 is about 33972.9863715276. The cubic root of 1154163803 is about 1048.9524860772.

The spelling of 1154163803 in words is "one billion, one hundred fifty-four million, one hundred sixty-three thousand, eight hundred three".