42105275 has 18 divisors (see below), whose sum is σ = 53049060. Its totient is φ = 33150720.

The previous prime is 42105263. The next prime is 42105313. The reversal of 42105275 is 57250124.

It is not a de Polignac number, because 42105275 - 2⁶ = 42105211 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 235136 + ... + 235314.

It is an arithmetic number, because the mean of its divisors is an integer number (2947170).

Almost surely, 2^42105275 is an apocalyptic number.

42105275 is a deficient number, since it is larger than the sum of its proper divisors (10943785).

42105275 is an equidigital number, since it uses as much as digits as its factorization.

42105275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 42105275 is about 6488.8577577259. The cubic root of 42105275 is about 347.8928497128.

Adding to 42105275 its reverse (57250124), we get a palindrome (99355399).

The spelling of 42105275 in words is "forty-two million, one hundred five thousand, two hundred seventy-five".