2138015 has 8 divisors (see below), whose sum is σ = 2798928. Its totient is φ = 1554880.

The previous prime is 2137999. The next prime is 2138029. The reversal of 2138015 is 5108312.

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

It is not a de Polignac number, because 2138015 - 2⁴ = 2137999 is a prime.

It is a super-2 number, since 2×2138015² = 9142216280450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19382 + ... + 19491.

It is an arithmetic number, because the mean of its divisors is an integer number (349866).

2^2138015 is an apocalyptic number.

2138015 is a deficient number, since it is larger than the sum of its proper divisors (660913).

2138015 is a wasteful number, since it uses less digits than its factorization.

2138015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38889.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2138015 is about 1462.1952673976. The cubic root of 2138015 is about 128.8260178848.

It can be divided in two parts, 213 and 8015, that added together give a palindrome (8228).

The spelling of 2138015 in words is "two million, one hundred thirty-eight thousand, fifteen".