2140015 has 4 divisors (see below), whose sum is σ = 2568024. Its totient is φ = 1712008.

The previous prime is 2140013. The next prime is 2140049. The reversal of 2140015 is 5100412.

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

It is a cyclic number.

It is not a de Polignac number, because 2140015 - 2¹ = 2140013 is a prime.

It is a super-3 number, since 3×2140015³ = 29401650250333510125, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2139977 and 2140004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213997 + ... + 214006.

It is an arithmetic number, because the mean of its divisors is an integer number (642006).

2^2140015 is an apocalyptic number.

2140015 is a deficient number, since it is larger than the sum of its proper divisors (428009).

2140015 is an equidigital number, since it uses as much as digits as its factorization.

2140015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428008.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2140015 is about 1462.8790107182. The cubic root of 2140015 is about 128.8661753420.

Adding to 2140015 its reverse (5100412), we get a palindrome (7240427).

The spelling of 2140015 in words is "two million, one hundred forty thousand, fifteen".