1144827457 has 4 divisors (see below), whose sum is σ = 1169185536. Its totient is φ = 1120469380.

The previous prime is 1144827433. The next prime is 1144827469. The reversal of 1144827457 is 7547284411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1144827457 - 2⁷ = 1144827329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144827407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12178969 + ... + 12179062.

It is an arithmetic number, because the mean of its divisors is an integer number (292296384).

Almost surely, 2^1144827457 is an apocalyptic number.

It is an amenable number.

1144827457 is a deficient number, since it is larger than the sum of its proper divisors (24358079).

1144827457 is an equidigital number, since it uses as much as digits as its factorization.

1144827457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24358078.

The product of its digits is 250880, while the sum is 43.

The square root of 1144827457 is about 33835.2989790248. The cubic root of 1144827457 is about 1046.1164040129.

The spelling of 1144827457 in words is "one billion, one hundred forty-four million, eight hundred twenty-seven thousand, four hundred fifty-seven".