2015331 has 4 divisors (see below), whose sum is σ = 2687112. Its totient is φ = 1343552.

The previous prime is 2015317. The next prime is 2015339. The reversal of 2015331 is 1335102.

It is a happy number.

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 2015331 - 2⁶ = 2015267 is a prime.

It is a super-2 number, since 2×2015331² = 8123118079122, which contains 22 as substring.

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 2015331.

It is not an unprimeable number, because it can be changed into a prime (2015339) 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, 335886 + ... + 335891.

It is an arithmetic number, because the mean of its divisors is an integer number (671778).

2^2015331 is an apocalyptic number.

2015331 is a deficient number, since it is larger than the sum of its proper divisors (671781).

2015331 is an equidigital number, since it uses as much as digits as its factorization.

2015331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671780.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 2015331 is about 1419.6235416476. The cubic root of 2015331 is about 126.3132167148.

It can be divided in two parts, 2015 and 331, that added together give a triangular number (2346 = T₆₈).

The spelling of 2015331 in words is "two million, fifteen thousand, three hundred thirty-one".