2131700 has 18 divisors (see below), whose sum is σ = 4626006. Its totient is φ = 852640.

The previous prime is 2131699. The next prime is 2131721. The reversal of 2131700 is 71312.

It can be written as a sum of positive squares in 3 ways, for example, as 753424 + 1378276 = 868^2 + 1174^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10559 + ... + 10758.

2^2131700 is an apocalyptic number.

2131700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131700 is an abundant number, since it is smaller than the sum of its proper divisors (2494306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131700 is a wasteful number, since it uses less digits than its factorization.

2131700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21331 (or 21324 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 2131700 is about 1460.0342461737. The cubic root of 2131700 is about 128.6990561011.

The spelling of 2131700 in words is "two million, one hundred thirty-one thousand, seven hundred".