2151115 has 8 divisors (see below), whose sum is σ = 2605680. Its totient is φ = 1704672.

The previous prime is 2151101. The next prime is 2151119. The reversal of 2151115 is 5111512.

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

It is a cyclic number.

It is not a de Polignac number, because 2151115 - 2¹¹ = 2149067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2151119) 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, 1429 + ... + 2518.

It is an arithmetic number, because the mean of its divisors is an integer number (325710).

2^2151115 is an apocalyptic number.

2151115 is a deficient number, since it is larger than the sum of its proper divisors (454565).

2151115 is a wasteful number, since it uses less digits than its factorization.

2151115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4061.

The product of its digits is 50, while the sum is 16.

The square root of 2151115 is about 1466.6679924236. The cubic root of 2151115 is about 129.0885956707.

Adding to 2151115 its reverse (5111512), we get a palindrome (7262627).

The spelling of 2151115 in words is "two million, one hundred fifty-one thousand, one hundred fifteen".