1140549449 has 8 divisors (see below), whose sum is σ = 1228551240. Its totient is φ = 1052585856.

The previous prime is 1140549437. The next prime is 1140549451. The reversal of 1140549449 is 9449450411.

It can be written as a sum of positive squares in 4 ways, for example, as 59783824 + 1080765625 = 7732^2 + 32875^2 .

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 1140549449 - 2¹² = 1140545353 is a prime.

It is a super-2 number, since 2×1140549449² = 2601706091228407202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140549409) 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, 94637 + ... + 106005.

It is an arithmetic number, because the mean of its divisors is an integer number (153568905).

Almost surely, 2^1140549449 is an apocalyptic number.

It is an amenable number.

1140549449 is a deficient number, since it is larger than the sum of its proper divisors (88001791).

1140549449 is a wasteful number, since it uses less digits than its factorization.

1140549449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19099.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1140549449 is about 33772.0216895584. The cubic root of 1140549449 is about 1044.8117298550.

The spelling of 1140549449 in words is "one billion, one hundred forty million, five hundred forty-nine thousand, four hundred forty-nine".