15020197 has 6 divisors (see below), whose sum is σ = 15956018. Its totient is φ = 14136384.

The previous prime is 15020189. The next prime is 15020207. The reversal of 15020197 is 79102051.

It can be written as a sum of positive squares in 3 ways, for example, as 4268356 + 10751841 = 2066^2 + 3279^2 .

It is not a de Polignac number, because 15020197 - 2³ = 15020189 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 (15020107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25698 + ... + 26275.

Almost surely, 2^15020197 is an apocalyptic number.

15020197 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

15020197 is a deficient number, since it is larger than the sum of its proper divisors (935821).

15020197 is an equidigital number, since it uses as much as digits as its factorization.

15020197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52007 (or 51990 counting only the distinct ones).

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

The square root of 15020197 is about 3875.5898905844. The cubic root of 15020197 is about 246.7318468688.

The spelling of 15020197 in words is "fifteen million, twenty thousand, one hundred ninety-seven".