1144531763 has 4 divisors (see below), whose sum is σ = 1148188728. Its totient is φ = 1140874800.

The previous prime is 1144531757. The next prime is 1144531799. The reversal of 1144531763 is 3671354411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3671354411 = 157 ⋅23384423.

It is a cyclic number.

It is not a de Polignac number, because 1144531763 - 2¹² = 1144527667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144531163) 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, 1828013 + ... + 1828638.

It is an arithmetic number, because the mean of its divisors is an integer number (287047182).

Almost surely, 2^1144531763 is an apocalyptic number.

1144531763 is a deficient number, since it is larger than the sum of its proper divisors (3656965).

1144531763 is an equidigital number, since it uses as much as digits as its factorization.

1144531763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3656964.

The product of its digits is 30240, while the sum is 35.

The square root of 1144531763 is about 33830.9290886313. The cubic root of 1144531763 is about 1046.0263301833.

The spelling of 1144531763 in words is "one billion, one hundred forty-four million, five hundred thirty-one thousand, seven hundred sixty-three".