2141686 has 4 divisors (see below), whose sum is σ = 3212532. Its totient is φ = 1070842.

The previous prime is 2141681. The next prime is 2141687. The reversal of 2141686 is 6861412.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535420 + ... + 535423.

It is an arithmetic number, because the mean of its divisors is an integer number (803133).

2^2141686 is an apocalyptic number.

2141686 is a deficient number, since it is larger than the sum of its proper divisors (1070846).

2141686 is a wasteful number, since it uses less digits than its factorization.

2141686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070845.

The product of its digits is 2304, while the sum is 28.

The square root of 2141686 is about 1463.4500333117. The cubic root of 2141686 is about 128.8997077169.

The spelling of 2141686 in words is "two million, one hundred forty-one thousand, six hundred eighty-six".