101143044 has 18 divisors (see below), whose sum is σ = 255667230. Its totient is φ = 33714336.

The previous prime is 101143019. The next prime is 101143057. The reversal of 101143044 is 440341101.

It can be written as a sum of positive squares in only one way, i.e., 83503044 + 17640000 = 9138^2 + 4200^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1404729 + ... + 1404800.

It is an arithmetic number, because the mean of its divisors is an integer number (14203735).

Almost surely, 2^101143044 is an apocalyptic number.

It is an amenable number.

101143044 is an abundant number, since it is smaller than the sum of its proper divisors (154524186).

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

101143044 is a wasteful number, since it uses less digits than its factorization.

101143044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809539 (or 2809534 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 101143044 is about 10056.9898080887. The cubic root of 101143044 is about 465.9207009545.

Adding to 101143044 its reverse (440341101), we get a palindrome (541484145).

The spelling of 101143044 in words is "one hundred one million, one hundred forty-three thousand, forty-four".