2102142 has 16 divisors (see below), whose sum is σ = 4804992. Its totient is φ = 600600.

The previous prime is 2102137. The next prime is 2102143. The reversal of 2102142 is 2412012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24984 + ... + 25067.

It is an arithmetic number, because the mean of its divisors is an integer number (300312).

2^2102142 is an apocalyptic number.

2102142 is an abundant number, since it is smaller than the sum of its proper divisors (2702850).

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

2102142 is a wasteful number, since it uses less digits than its factorization.

2102142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50063.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2102142 is about 1449.8765464687. The cubic root of 2102142 is about 128.1014413952.

Adding to 2102142 its reverse (2412012), we get a palindrome (4514154).

The spelling of 2102142 in words is "two million, one hundred two thousand, one hundred forty-two".