105245242 has 16 divisors (see below), whose sum is σ = 163091592. Its totient is φ = 50898240.

The previous prime is 105245233. The next prime is 105245243. The reversal of 105245242 is 242542501.

It can be written as a sum of positive squares in 4 ways, for example, as 93141801 + 12103441 = 9651^2 + 3479^2 .

It is a super-2 number, since 2×105245242² = 22153121927277128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105245243) 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, 8692 + ... + 16912.

Almost surely, 2^105245242 is an apocalyptic number.

105245242 is a deficient number, since it is larger than the sum of its proper divisors (57846350).

105245242 is a wasteful number, since it uses less digits than its factorization.

105245242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8433.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 105245242 is about 10258.9103709897. The cubic root of 105245242 is about 472.1364066394.

Adding to 105245242 its reverse (242542501), we get a palindrome (347787743).

The spelling of 105245242 in words is "one hundred five million, two hundred forty-five thousand, two hundred forty-two".