2106151 has 4 divisors (see below), whose sum is σ = 2163112. Its totient is φ = 2049192.

The previous prime is 2106149. The next prime is 2106173. The reversal of 2106151 is 1516012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2106151 - 2¹ = 2106149 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106191) 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, 28425 + ... + 28498.

It is an arithmetic number, because the mean of its divisors is an integer number (540778).

2^2106151 is an apocalyptic number.

2106151 is a deficient number, since it is larger than the sum of its proper divisors (56961).

2106151 is an equidigital number, since it uses as much as digits as its factorization.

2106151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56960.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 2106151 is about 1451.2584194416. The cubic root of 2106151 is about 128.1828238699.

It can be divided in two parts, 21061 and 51, that added together give a palindrome (21112).

The spelling of 2106151 in words is "two million, one hundred six thousand, one hundred fifty-one".