2102140 has 12 divisors (see below), whose sum is σ = 4414536. Its totient is φ = 840848.

The previous prime is 2102137. The next prime is 2102143. The reversal of 2102140 is 412012.

It is an interprime number because it is at equal distance from previous prime (2102137) and next prime (2102143).

It is a Harshad number since it is a multiple of its sum of digits (10).

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 3 ways as a sum of consecutive naturals, for example, 52534 + ... + 52573.

It is an arithmetic number, because the mean of its divisors is an integer number (367878).

2^2102140 is an apocalyptic number.

2102140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102140 is an abundant number, since it is smaller than the sum of its proper divisors (2312396).

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

2102140 is a wasteful number, since it uses less digits than its factorization.

2102140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105116 (or 105114 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2102140 is about 1449.8758567546. The cubic root of 2102140 is about 128.1014007695.

Adding to 2102140 its reverse (412012), we get a palindrome (2514152).

The spelling of 2102140 in words is "two million, one hundred two thousand, one hundred forty".