1144763445 has 32 divisors (see below), whose sum is σ = 2114880768. Its totient is φ = 517920768.

The previous prime is 1144763437. The next prime is 1144763447. The reversal of 1144763445 is 5443674411.

It is not a de Polignac number, because 1144763445 - 2³ = 1144763437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144763447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46014 + ... + 66383.

It is an arithmetic number, because the mean of its divisors is an integer number (66090024).

Almost surely, 2^1144763445 is an apocalyptic number.

1144763445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144763445 is a deficient number, since it is larger than the sum of its proper divisors (970117323).

1144763445 is a wasteful number, since it uses less digits than its factorization.

1144763445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112509.

The product of its digits is 161280, while the sum is 39.

The square root of 1144763445 is about 33834.3530306108. The cubic root of 1144763445 is about 1046.0969060961.

The spelling of 1144763445 in words is "one billion, one hundred forty-four million, seven hundred sixty-three thousand, four hundred forty-five".