105242056 has 32 divisors (see below), whose sum is σ = 201025440. Its totient is φ = 51643008.

The previous prime is 105241999. The next prime is 105242057. The reversal of 105242056 is 650242501.

It is a super-2 number, since 2×105242056² = 22151780702214272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105242056.

It is not an unprimeable number, because it can be changed into a prime (105242057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178995 + ... + 179581.

It is an arithmetic number, because the mean of its divisors is an integer number (6282045).

Almost surely, 2^105242056 is an apocalyptic number.

It is an amenable number.

105242056 is a deficient number, since it is larger than the sum of its proper divisors (95783384).

105242056 is a wasteful number, since it uses less digits than its factorization.

105242056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 105242056 is about 10258.7550901657. The cubic root of 105242056 is about 472.1316423963.

Adding to 105242056 its reverse (650242501), we get a palindrome (755484557).

The spelling of 105242056 in words is "one hundred five million, two hundred forty-two thousand, fifty-six".