2015197 has 12 divisors (see below), whose sum is σ = 2259520. Its totient is φ = 1791936.

The previous prime is 2015183. The next prime is 2015201. The reversal of 2015197 is 7915102.

It is a de Polignac number, because none of the positive numbers 2^k-2015197 is a prime.

It is a super-2 number, since 2×2015197² = 8122037897618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015107) 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 11 ways as a sum of consecutive naturals, for example, 5308 + ... + 5674.

2^2015197 is an apocalyptic number.

It is an amenable number.

2015197 is a deficient number, since it is larger than the sum of its proper divisors (244323).

2015197 is a wasteful number, since it uses less digits than its factorization.

2015197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 2015197 is about 1419.5763452523. The cubic root of 2015197 is about 126.3104171174.

The spelling of 2015197 in words is "two million, fifteen thousand, one hundred ninety-seven".