105215384 has 8 divisors (see below), whose sum is σ = 197278860. Its totient is φ = 52607688.

The previous prime is 105215381. The next prime is 105215387. The reversal of 105215384 is 483512501.

It is an interprime number because it is at equal distance from previous prime (105215381) and next prime (105215387).

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

It is a super-2 number, since 2×105215384² = 22140554060534912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105215381) 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 as a sum of consecutive naturals, namely, 6575954 + ... + 6575969.

Almost surely, 2^105215384 is an apocalyptic number.

It is an amenable number.

105215384 is a deficient number, since it is larger than the sum of its proper divisors (92063476).

105215384 is a wasteful number, since it uses less digits than its factorization.

105215384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13151929 (or 13151925 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 105215384 is about 10257.4550449904. The cubic root of 105215384 is about 472.0917541627.

Adding to 105215384 its reverse (483512501), we get a palindrome (588727885).

The spelling of 105215384 in words is "one hundred five million, two hundred fifteen thousand, three hundred eighty-four".