1144821349 has 12 divisors (see below), whose sum is σ = 1332289728. Its totient is φ = 980863800.

The previous prime is 1144821341. The next prime is 1144821401. The reversal of 1144821349 is 9431284411.

It is not a de Polignac number, because 1144821349 - 2³ = 1144821341 is a prime.

It is a super-2 number, since 2×1144821349² = 2621231842252359602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144821341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197604 + ... + 203314.

It is an arithmetic number, because the mean of its divisors is an integer number (111024144).

Almost surely, 2^1144821349 is an apocalyptic number.

It is an amenable number.

1144821349 is a deficient number, since it is larger than the sum of its proper divisors (187468379).

1144821349 is an equidigital number, since it uses as much as digits as its factorization.

1144821349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9816 (or 9809 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 1144821349 is about 33835.2087181386. The cubic root of 1144821349 is about 1046.1145435607.

The spelling of 1144821349 in words is "one billion, one hundred forty-four million, eight hundred twenty-one thousand, three hundred forty-nine".