2109012 has 24 divisors (see below), whose sum is σ = 4953312. Its totient is φ = 698400.

The previous prime is 2109011. The next prime is 2109013.

It is a happy number.

2109012 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (2109011) and next prime (2109013).

It is a super-2 number, since 2×2109012² = 8895863232288, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2108982 and 2109000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109011) 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, 1687 + ... + 2657.

It is an arithmetic number, because the mean of its divisors is an integer number (206388).

2^2109012 is an apocalyptic number.

It is an amenable number.

2109012 is an abundant number, since it is smaller than the sum of its proper divisors (2844300).

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

2109012 is a wasteful number, since it uses less digits than its factorization.

2109012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2109012 is about 1452.2437811883. The cubic root of 2109012 is about 128.2408388822.

The spelling of 2109012 in words is "two million, one hundred nine thousand, twelve".