2142075 has 30 divisors (see below), whose sum is σ = 3836684. Its totient is φ = 1054560.

The previous prime is 2142073. The next prime is 2142083. The reversal of 2142075 is 5702412.

It is not a de Polignac number, because 2142075 - 2¹ = 2142073 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 164769 + ... + 164781.

2^2142075 is an apocalyptic number.

2142075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2142075 is a deficient number, since it is larger than the sum of its proper divisors (1694609).

2142075 is an frugal number, since it uses more digits than its factorization.

2142075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2142075 is about 1463.5829323957. The cubic root of 2142075 is about 128.9075113743.

Adding to 2142075 its reverse (5702412), we get a palindrome (7844487).

The spelling of 2142075 in words is "two million, one hundred forty-two thousand, seventy-five".