105551444 has 6 divisors (see below), whose sum is σ = 184715034. Its totient is φ = 52775720.

The previous prime is 105551437. The next prime is 105551447. The reversal of 105551444 is 444155501.

It can be written as a sum of positive squares in only one way, i.e., 91202500 + 14348944 = 9550^2 + 3788^2 .

It is a super-2 number, since 2×105551444² = 22282214660970272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105551447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13193927 + ... + 13193934.

It is an arithmetic number, because the mean of its divisors is an integer number (30785839).

Almost surely, 2^105551444 is an apocalyptic number.

It is an amenable number.

105551444 is a deficient number, since it is larger than the sum of its proper divisors (79163590).

105551444 is a wasteful number, since it uses less digits than its factorization.

105551444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26387865 (or 26387863 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 105551444 is about 10273.8232416175. The cubic root of 105551444 is about 472.5938434211.

The spelling of 105551444 in words is "one hundred five million, five hundred fifty-one thousand, four hundred forty-four".