105681501 has 6 divisors (see below), whose sum is σ = 152651070. Its totient is φ = 70454328.

The previous prime is 105681473. The next prime is 105681517. The reversal of 105681501 is 105186501.

It can be written as a sum of positive squares in only one way, i.e., 59305401 + 46376100 = 7701^2 + 6810^2 .

It is not a de Polignac number, because 105681501 - 2⁹ = 105680989 is a prime.

It is a super-2 number, since 2×105681501² = 22337159307226002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105681581) 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 5 ways as a sum of consecutive naturals, for example, 5871186 + ... + 5871203.

It is an arithmetic number, because the mean of its divisors is an integer number (25441845).

Almost surely, 2^105681501 is an apocalyptic number.

It is an amenable number.

105681501 is a deficient number, since it is larger than the sum of its proper divisors (46969569).

105681501 is a wasteful number, since it uses less digits than its factorization.

105681501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11742395 (or 11742392 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 105681501 is about 10280.1508257418. The cubic root of 105681501 is about 472.7878685894.

The spelling of 105681501 in words is "one hundred five million, six hundred eighty-one thousand, five hundred one".