1154802081 has 4 divisors (see below), whose sum is σ = 1539736112. Its totient is φ = 769868052.

The previous prime is 1154802071. The next prime is 1154802091. The reversal of 1154802081 is 1802084511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1154802071) and next prime (1154802091).

It is not a de Polignac number, because 1154802081 - 2⁹ = 1154801569 is a prime.

It is a super-2 number, since 2×1154802081² = 2667135692563861122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154802071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192467011 + ... + 192467016.

It is an arithmetic number, because the mean of its divisors is an integer number (384934028).

Almost surely, 2^1154802081 is an apocalyptic number.

It is an amenable number.

1154802081 is a deficient number, since it is larger than the sum of its proper divisors (384934031).

1154802081 is an equidigital number, since it uses as much as digits as its factorization.

1154802081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384934030.

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 1154802081 is about 33982.3789779350. The cubic root of 1154802081 is about 1049.1458150515.

Adding to 1154802081 its reverse (1802084511), we get a palindrome (2956886592).

The spelling of 1154802081 in words is "one billion, one hundred fifty-four million, eight hundred two thousand, eighty-one".