1144445554 has 16 divisors (see below), whose sum is σ = 1962707328. Its totient is φ = 490276512.

The previous prime is 1144445551. The next prime is 1144445567. The reversal of 1144445554 is 4555444411.

It is not an unprimeable number, because it can be changed into a prime (1144445551) 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, 21934 + ... + 52630.

It is an arithmetic number, because the mean of its divisors is an integer number (122669208).

Almost surely, 2^1144445554 is an apocalyptic number.

1144445554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1144445554 is a deficient number, since it is larger than the sum of its proper divisors (818261774).

1144445554 is a wasteful number, since it uses less digits than its factorization.

1144445554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33369.

The product of its digits is 128000, while the sum is 37.

The square root of 1144445554 is about 33829.6549494670. The cubic root of 1144445554 is about 1046.0000664159. Note that the first 4 decimals are identical.

Adding to 1144445554 its reverse (4555444411), we get a palindrome (5699889965).

The spelling of 1144445554 in words is "one billion, one hundred forty-four million, four hundred forty-five thousand, five hundred fifty-four".