105542312 has 8 divisors (see below), whose sum is σ = 197891850. Its totient is φ = 52771152.

The previous prime is 105542309. The next prime is 105542317. The reversal of 105542312 is 213245501.

It can be written as a sum of positive squares in only one way, i.e., 71132356 + 34409956 = 8434^2 + 5866^2 .

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

It is a super-2 number, since 2×105542312² = 22278359244610688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105542317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6596387 + ... + 6596402.

Almost surely, 2^105542312 is an apocalyptic number.

It is an amenable number.

105542312 is a deficient number, since it is larger than the sum of its proper divisors (92349538).

105542312 is a wasteful number, since it uses less digits than its factorization.

105542312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13192795 (or 13192791 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 105542312 is about 10273.3788015433. The cubic root of 105542312 is about 472.5802138856.

Adding to 105542312 its reverse (213245501), we get a palindrome (318787813).

The spelling of 105542312 in words is "one hundred five million, five hundred forty-two thousand, three hundred twelve".