2131766 has 48 divisors (see below), whose sum is σ = 4269024. Its totient is φ = 778752.

The previous prime is 2131721. The next prime is 2131771. The reversal of 2131766 is 6671312.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40196 + ... + 40248.

It is an arithmetic number, because the mean of its divisors is an integer number (88938).

2^2131766 is an apocalyptic number.

2131766 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2131766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

2131766 is a wasteful number, since it uses less digits than its factorization.

2131766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 92 counting only the distinct ones).

The product of its digits is 1512, while the sum is 26.

The square root of 2131766 is about 1460.0568482083. The cubic root of 2131766 is about 128.7003843134.

The spelling of 2131766 in words is "two million, one hundred thirty-one thousand, seven hundred sixty-six".