1144533605 has 4 divisors (see below), whose sum is σ = 1373440332. Its totient is φ = 915626880.

The previous prime is 1144533601. The next prime is 1144533629. The reversal of 1144533605 is 5063354411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5063354411 = 34159 ⋅148229.

It can be written as a sum of positive squares in 2 ways, for example, as 270207844 + 874325761 = 16438^2 + 29569^2 .

It is not a de Polignac number, because 1144533605 - 2² = 1144533601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144533601) 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, 114453356 + ... + 114453365.

It is an arithmetic number, because the mean of its divisors is an integer number (343360083).

Almost surely, 2^1144533605 is an apocalyptic number.

It is an amenable number.

1144533605 is a deficient number, since it is larger than the sum of its proper divisors (228906727).

1144533605 is an equidigital number, since it uses as much as digits as its factorization.

1144533605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228906726.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1144533605 is about 33830.9563122298. The cubic root of 1144533605 is about 1046.0268913384.

The spelling of 1144533605 in words is "one billion, one hundred forty-four million, five hundred thirty-three thousand, six hundred five".