2141565 has 8 divisors (see below), whose sum is σ = 3426528. Its totient is φ = 1142160.

The previous prime is 2141549. The next prime is 2141569. The reversal of 2141565 is 5651412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2141565 - 2⁴ = 2141549 is a prime.

It is a Curzon number.

2141565 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71371 + ... + 71400.

It is an arithmetic number, because the mean of its divisors is an integer number (428316).

2^2141565 is an apocalyptic number.

It is an amenable number.

2141565 is a deficient number, since it is larger than the sum of its proper divisors (1284963).

2141565 is a wasteful number, since it uses less digits than its factorization.

2141565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142779.

The product of its digits is 1200, while the sum is 24.

The square root of 2141565 is about 1463.4086920611. The cubic root of 2141565 is about 128.8972801656.

Adding to 2141565 its reverse (5651412), we get a palindrome (7792977).

The spelling of 2141565 in words is "two million, one hundred forty-one thousand, five hundred sixty-five".