101801444 has 12 divisors (see below), whose sum is σ = 178225068. Its totient is φ = 50880000.

The previous prime is 101801443. The next prime is 101801461. The reversal of 101801444 is 444108101.

It can be written as a sum of positive squares in 2 ways, for example, as 12687844 + 89113600 = 3562^2 + 9440^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (101801443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12824 + ... + 19184.

It is an arithmetic number, because the mean of its divisors is an integer number (14852089).

Almost surely, 2^101801444 is an apocalyptic number.

It is an amenable number.

101801444 is a deficient number, since it is larger than the sum of its proper divisors (76423624).

101801444 is a wasteful number, since it uses less digits than its factorization.

101801444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10366 (or 10364 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 101801444 is about 10089.6701630925. The cubic root of 101801444 is about 466.9294997868.

Adding to 101801444 its reverse (444108101), we get a palindrome (545909545).

The spelling of 101801444 in words is "one hundred one million, eight hundred one thousand, four hundred forty-four".