1144547154 has 24 divisors (see below), whose sum is σ = 2480509980. Its totient is φ = 381414528.

The previous prime is 1144547153. The next prime is 1144547161. The reversal of 1144547154 is 4517454411.

It can be written as a sum of positive squares in 2 ways, for example, as 882981225 + 261565929 = 29715^2 + 16173^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1144547153) 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 11 ways as a sum of consecutive naturals, for example, 96814 + ... + 107990.

Almost surely, 2^1144547154 is an apocalyptic number.

1144547154 is an abundant number, since it is smaller than the sum of its proper divisors (1335962826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144547154 is a wasteful number, since it uses less digits than its factorization.

1144547154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16874 (or 16871 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 1144547154 is about 33831.1565572329. The cubic root of 1144547154 is about 1046.0310189476.

The spelling of 1144547154 in words is "one billion, one hundred forty-four million, five hundred forty-seven thousand, one hundred fifty-four".