1144532550 has 48 divisors (see below), whose sum is σ = 3243935232. Its totient is φ = 261607200.

The previous prime is 1144532549. The next prime is 1144532551. The reversal of 1144532550 is 552354411.

It is an interprime number because it is at equal distance from previous prime (1144532549) and next prime (1144532551).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144532551) 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, 543966 + ... + 546065.

It is an arithmetic number, because the mean of its divisors is an integer number (67581984).

Almost surely, 2^1144532550 is an apocalyptic number.

1144532550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1144532550 is an abundant number, since it is smaller than the sum of its proper divisors (2099402682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144532550 is a wasteful number, since it uses less digits than its factorization.

1144532550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090053 (or 1090048 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1144532550 is about 33830.9407199977. The cubic root of 1144532550 is about 1046.0265699386.

Adding to 1144532550 its reverse (552354411), we get a palindrome (1696886961).

The spelling of 1144532550 in words is "one billion, one hundred forty-four million, five hundred thirty-two thousand, five hundred fifty".