105201242 has 4 divisors (see below), whose sum is σ = 157801866. Its totient is φ = 52600620.

The previous prime is 105201227. The next prime is 105201269. The reversal of 105201242 is 242102501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242102501 = 149 ⋅1624849.

It can be written as a sum of positive squares in only one way, i.e., 69572281 + 35628961 = 8341^2 + 5969^2 .

It is a super-2 number, since 2×105201242² = 22134602636685128, 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 105201242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26300309 + ... + 26300312.

Almost surely, 2^105201242 is an apocalyptic number.

105201242 is a deficient number, since it is larger than the sum of its proper divisors (52600624).

105201242 is an equidigital number, since it uses as much as digits as its factorization.

105201242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52600623.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 105201242 is about 10256.7656695471. The cubic root of 105201242 is about 472.0706019304.

Adding to 105201242 its reverse (242102501), we get a palindrome (347303743).

The spelling of 105201242 in words is "one hundred five million, two hundred one thousand, two hundred forty-two".