1144561562 has 4 divisors (see below), whose sum is σ = 1716842346. Its totient is φ = 572280780.

The previous prime is 1144561543. The next prime is 1144561609. The reversal of 1144561562 is 2651654411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 988536481 + 156025081 = 31441^2 + 12491^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286140389 + ... + 286140392.

Almost surely, 2^1144561562 is an apocalyptic number.

1144561562 is a deficient number, since it is larger than the sum of its proper divisors (572280784).

1144561562 is an equidigital number, since it uses as much as digits as its factorization.

1144561562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572280783.

The product of its digits is 28800, while the sum is 35.

The square root of 1144561562 is about 33831.3694963713. The cubic root of 1144561562 is about 1046.0354082095.

The spelling of 1144561562 in words is "one billion, one hundred forty-four million, five hundred sixty-one thousand, five hundred sixty-two".