2015151 has 4 divisors (see below), whose sum is σ = 2686872. Its totient is φ = 1343432.

The previous prime is 2015149. The next prime is 2015161. The reversal of 2015151 is 1515102.

2015151 is nontrivially palindromic in base 2.

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 2015151 - 2¹ = 2015149 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 2015151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335856 + ... + 335861.

It is an arithmetic number, because the mean of its divisors is an integer number (671718).

2^2015151 is an apocalyptic number.

2015151 is a deficient number, since it is larger than the sum of its proper divisors (671721).

2015151 is an equidigital number, since it uses as much as digits as its factorization.

2015151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671720.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 2015151 is about 1419.5601431429. The cubic root of 2015151 is about 126.3094560330.

It can be divided in two parts, 20151 and 51, that added together give a palindrome (20202).

The spelling of 2015151 in words is "two million, fifteen thousand, one hundred fifty-one".