1144161562 has 8 divisors (see below), whose sum is σ = 1748624436. Its totient is φ = 561286752.

The previous prime is 1144161559. The next prime is 1144161569. The reversal of 1144161562 is 2651614411.

It can be written as a sum of positive squares in 2 ways, for example, as 1132389801 + 11771761 = 33651^2 + 3431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1144161569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5396883 + ... + 5397094.

Almost surely, 2^1144161562 is an apocalyptic number.

1144161562 is a deficient number, since it is larger than the sum of its proper divisors (604462874).

1144161562 is a wasteful number, since it uses less digits than its factorization.

1144161562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10794032.

The product of its digits is 5760, while the sum is 31.

The square root of 1144161562 is about 33825.4573065908. The cubic root of 1144161562 is about 1045.9135382787.

Adding to 1144161562 its reverse (2651614411), we get a palindrome (3795775973).

The spelling of 1144161562 in words is "one billion, one hundred forty-four million, one hundred sixty-one thousand, five hundred sixty-two".