2912109 has 16 divisors (see below), whose sum is σ = 4053504. Its totient is φ = 1857600.

The previous prime is 2912081. The next prime is 2912131. The reversal of 2912109 is 9012192.

It is not a de Polignac number, because 2912109 - 2¹² = 2908013 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2912009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15999 + ... + 16179.

It is an arithmetic number, because the mean of its divisors is an integer number (253344).

2^2912109 is an apocalyptic number.

It is an amenable number.

2912109 is a deficient number, since it is larger than the sum of its proper divisors (1141395).

2912109 is a wasteful number, since it uses less digits than its factorization.

2912109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 2912109 is about 1706.4902578099. The cubic root of 2912109 is about 142.8025213562.

The spelling of 2912109 in words is "two million, nine hundred twelve thousand, one hundred nine".