1144353775 has 24 divisors (see below), whose sum is σ = 1479258000. Its totient is φ = 877094400.

The previous prime is 1144353773. The next prime is 1144353781. The reversal of 1144353775 is 5773534411.

It is not a de Polignac number, because 1144353775 - 2¹ = 1144353773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144353773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88951 + ... + 100999.

It is an arithmetic number, because the mean of its divisors is an integer number (61635750).

Almost surely, 2^1144353775 is an apocalyptic number.

1144353775 is a deficient number, since it is larger than the sum of its proper divisors (334904225).

1144353775 is a wasteful number, since it uses less digits than its factorization.

1144353775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12219 (or 12214 counting only the distinct ones).

The product of its digits is 176400, while the sum is 40.

The square root of 1144353775 is about 33828.2984348903. The cubic root of 1144353775 is about 1045.9721042857.

The spelling of 1144353775 in words is "one billion, one hundred forty-four million, three hundred fifty-three thousand, seven hundred seventy-five".