105245442 has 24 divisors (see below), whose sum is σ = 233595180. Its totient is φ = 34225920.

The previous prime is 105245431. The next prime is 105245449. The reversal of 105245442 is 244542501.

It can be written as a sum of positive squares in 2 ways, for example, as 104837121 + 408321 = 10239^2 + 639^2 .

It is a super-2 number, since 2×105245442² = 22153206123550728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105245449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70567 + ... + 72042.

Almost surely, 2^105245442 is an apocalyptic number.

105245442 is an abundant number, since it is smaller than the sum of its proper divisors (128349738).

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

105245442 is a wasteful number, since it uses less digits than its factorization.

105245442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142658 (or 142655 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 105245442 is about 10258.9201186090. The cubic root of 105245442 is about 472.1367057099.

Adding to 105245442 its reverse (244542501), we get a palindrome (349787943).

The spelling of 105245442 in words is "one hundred five million, two hundred forty-five thousand, four hundred forty-two".