105145242 has 64 divisors (see below), whose sum is σ = 227957760. Its totient is φ = 32256000.

The previous prime is 105145241. The next prime is 105145247. The reversal of 105145242 is 242541501.

It is a super-2 number, since 2×105145242² = 22111043830477128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105145241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544698 + ... + 544890.

It is an arithmetic number, because the mean of its divisors is an integer number (3561840).

Almost surely, 2^105145242 is an apocalyptic number.

105145242 is an abundant number, since it is smaller than the sum of its proper divisors (122812518).

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

105145242 is a wasteful number, since it uses less digits than its factorization.

105145242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 105145242 is about 10254.0354007581. The cubic root of 105145242 is about 471.9868239403.

Adding to 105145242 its reverse (242541501), we get a palindrome (347686743).

The spelling of 105145242 in words is "one hundred five million, one hundred forty-five thousand, two hundred forty-two".