2815151 has 4 divisors (see below), whose sum is σ = 2825592. Its totient is φ = 2804712.

The previous prime is 2815129. The next prime is 2815157. The reversal of 2815151 is 1515182.

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 2815151 - 2¹⁰ = 2814127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2815157) 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, 4805 + ... + 5358.

It is an arithmetic number, because the mean of its divisors is an integer number (706398).

2^2815151 is an apocalyptic number.

2815151 is a deficient number, since it is larger than the sum of its proper divisors (10441).

2815151 is a wasteful number, since it uses less digits than its factorization.

2815151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10440.

The product of its digits is 400, while the sum is 23.

The square root of 2815151 is about 1677.8411724594. The cubic root of 2815151 is about 141.1997403875.

The spelling of 2815151 in words is "two million, eight hundred fifteen thousand, one hundred fifty-one".