105125242 has 4 divisors (see below), whose sum is σ = 157687866. Its totient is φ = 52562620.

The previous prime is 105125219. The next prime is 105125257. The reversal of 105125242 is 242521501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52722121 + 52403121 = 7261^2 + 7239^2 .

It is a super-2 number, since 2×105125242² = 22102633011117128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26281309 + ... + 26281312.

Almost surely, 2^105125242 is an apocalyptic number.

105125242 is a deficient number, since it is larger than the sum of its proper divisors (52562624).

105125242 is an equidigital number, since it uses as much as digits as its factorization.

105125242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52562623.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 105125242 is about 10253.0601285665. The cubic root of 105125242 is about 471.9568960207.

Adding to 105125242 its reverse (242521501), we get a palindrome (347646743).

The spelling of 105125242 in words is "one hundred five million, one hundred twenty-five thousand, two hundred forty-two".