1154449311 has 8 divisors (see below), whose sum is σ = 1629810864. Its totient is φ = 724360320.

The previous prime is 1154449201. The next prime is 1154449343. The reversal of 1154449311 is 1139444511.

It is a happy number.

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

It is not a de Polignac number, because 1154449311 - 2⁷ = 1154449183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154444311) 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, 11318080 + ... + 11318181.

It is an arithmetic number, because the mean of its divisors is an integer number (203726358).

Almost surely, 2^1154449311 is an apocalyptic number.

1154449311 is a deficient number, since it is larger than the sum of its proper divisors (475361553).

1154449311 is a wasteful number, since it uses less digits than its factorization.

1154449311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22636281.

The product of its digits is 8640, while the sum is 33.

The square root of 1154449311 is about 33977.1880973102. The cubic root of 1154449311 is about 1049.0389728290.

The spelling of 1154449311 in words is "one billion, one hundred fifty-four million, four hundred forty-nine thousand, three hundred eleven".