2109146 has 16 divisors (see below), whose sum is σ = 3556224. Its totient is φ = 930864.

The previous prime is 2109127. The next prime is 2109161. The reversal of 2109146 is 6419012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1166 + ... + 2361.

It is an arithmetic number, because the mean of its divisors is an integer number (222264).

2^2109146 is an apocalyptic number.

2109146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2109146 is a deficient number, since it is larger than the sum of its proper divisors (1447078).

2109146 is a wasteful number, since it uses less digits than its factorization.

2109146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2109146 is about 1452.2899159603. The cubic root of 2109146 is about 128.2435548314.

The spelling of 2109146 in words is "two million, one hundred nine thousand, one hundred forty-six".