1154944549 has 8 divisors (see below), whose sum is σ = 1262130048. Its totient is φ = 1048124160.

The previous prime is 1154944523. The next prime is 1154944559. The reversal of 1154944549 is 9454494511.

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

It is a cyclic number.

It is not a de Polignac number, because 1154944549 - 2⁷ = 1154944421 is a prime.

It is a super-2 number, since 2×1154944549² = 2667793822529626802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1154944499 and 1154944508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154944519) 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, 84637 + ... + 97330.

It is an arithmetic number, because the mean of its divisors is an integer number (157766256).

Almost surely, 2^1154944549 is an apocalyptic number.

It is an amenable number.

1154944549 is a deficient number, since it is larger than the sum of its proper divisors (107185499).

1154944549 is a wasteful number, since it uses less digits than its factorization.

1154944549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182555.

The product of its digits is 518400, while the sum is 46.

The square root of 1154944549 is about 33984.4751173238. The cubic root of 1154944549 is about 1049.1889576708.

The spelling of 1154944549 in words is "one billion, one hundred fifty-four million, nine hundred forty-four thousand, five hundred forty-nine".