105971912 has 8 divisors (see below), whose sum is σ = 198697350. Its totient is φ = 52985952.

The previous prime is 105971893. The next prime is 105971917. The reversal of 105971912 is 219179501.

It can be written as a sum of positive squares in only one way, i.e., 105966436 + 5476 = 10294^2 + 74^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×105971912² = 22460092265871488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105971917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6623237 + ... + 6623252.

Almost surely, 2^105971912 is an apocalyptic number.

It is an amenable number.

105971912 is a deficient number, since it is larger than the sum of its proper divisors (92725438).

105971912 is a wasteful number, since it uses less digits than its factorization.

105971912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13246495 (or 13246491 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 35.

The square root of 105971912 is about 10294.2659767465. The cubic root of 105971912 is about 473.2205435592.

The spelling of 105971912 in words is "one hundred five million, nine hundred seventy-one thousand, nine hundred twelve".