105142938 has 16 divisors (see below), whose sum is σ = 210845280. Its totient is φ = 34954416.

The previous prime is 105142907. The next prime is 105142957. The reversal of 105142938 is 839241501.

It is a super-2 number, since 2×105142938² = 22110074822543688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105142899 and 105142908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20845 + ... + 25392.

It is an arithmetic number, because the mean of its divisors is an integer number (13177830).

Almost surely, 2^105142938 is an apocalyptic number.

105142938 is an abundant number, since it is smaller than the sum of its proper divisors (105702342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105142938 is a wasteful number, since it uses less digits than its factorization.

105142938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46621.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 105142938 is about 10253.9230541291. The cubic root of 105142938 is about 471.9833764374.

The spelling of 105142938 in words is "one hundred five million, one hundred forty-two thousand, nine hundred thirty-eight".