1144525013 has 8 divisors (see below), whose sum is σ = 1149436440. Its totient is φ = 1139622400.

The previous prime is 1144525007. The next prime is 1144525037. The reversal of 1144525013 is 3105254411.

It can be written as a sum of positive squares in 4 ways, for example, as 95218564 + 1049306449 = 9758^2 + 32393^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1144525013 - 2¹⁸ = 1144262869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144525003) 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 7 ways as a sum of consecutive naturals, for example, 407213 + ... + 410013.

It is an arithmetic number, because the mean of its divisors is an integer number (143679555).

Almost surely, 2^1144525013 is an apocalyptic number.

It is an amenable number.

1144525013 is a deficient number, since it is larger than the sum of its proper divisors (4911427).

1144525013 is a wasteful number, since it uses less digits than its factorization.

1144525013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1144525013 is about 33830.8293277005. The cubic root of 1144525013 is about 1046.0242738281.

Adding to 1144525013 its reverse (3105254411), we get a palindrome (4249779424).

The spelling of 1144525013 in words is "one billion, one hundred forty-four million, five hundred twenty-five thousand, thirteen".