1144537133 has 4 divisors (see below), whose sum is σ = 1155649248. Its totient is φ = 1133425020.

The previous prime is 1144537129. The next prime is 1144537139. The reversal of 1144537133 is 3317354411.

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 1144537133 - 2² = 1144537129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1144537133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144537139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555903 + ... + 5556108.

It is an arithmetic number, because the mean of its divisors is an integer number (288912312).

Almost surely, 2^1144537133 is an apocalyptic number.

It is an amenable number.

1144537133 is a deficient number, since it is larger than the sum of its proper divisors (11112115).

1144537133 is a wasteful number, since it uses less digits than its factorization.

1144537133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112114.

The product of its digits is 15120, while the sum is 32.

The square root of 1144537133 is about 33831.0084537839. The cubic root of 1144537133 is about 1046.0279661223.

The spelling of 1144537133 in words is "one billion, one hundred forty-four million, five hundred thirty-seven thousand, one hundred thirty-three".