2106951 has 24 divisors (see below), whose sum is σ = 3567744. Its totient is φ = 1093680.

The previous prime is 2106943. The next prime is 2106953. The reversal of 2106951 is 1596012.

It is not a de Polignac number, because 2106951 - 2³ = 2106943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 966 + ... + 2268.

It is an arithmetic number, because the mean of its divisors is an integer number (148656).

2^2106951 is an apocalyptic number.

2106951 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2106951 is a deficient number, since it is larger than the sum of its proper divisors (1460793).

2106951 is a wasteful number, since it uses less digits than its factorization.

2106951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 2106951 is about 1451.5340161360. The cubic root of 2106951 is about 128.1990514621.

It can be divided in two parts, 2 and 106951, that added together give a triangular number (106953 = T₄₆₂).

The spelling of 2106951 in words is "two million, one hundred six thousand, nine hundred fifty-one".