197015297 has 4 divisors (see below), whose sum is σ = 197441280. Its totient is φ = 196589316.

The previous prime is 197015281. The next prime is 197015303. The reversal of 197015297 is 792510791.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 792510791 = 523 ⋅1515317.

It is a cyclic number.

It is not a de Polignac number, because 197015297 - 2⁴ = 197015281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197015267) 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, 212297 + ... + 213222.

It is an arithmetic number, because the mean of its divisors is an integer number (49360320).

Almost surely, 2^197015297 is an apocalyptic number.

It is an amenable number.

197015297 is a deficient number, since it is larger than the sum of its proper divisors (425983).

197015297 is an equidigital number, since it uses as much as digits as its factorization.

197015297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425982.

The product of its (nonzero) digits is 39690, while the sum is 41.

The square root of 197015297 is about 14036.2137701020. The cubic root of 197015297 is about 581.8798469109.

The spelling of 197015297 in words is "one hundred ninety-seven million, fifteen thousand, two hundred ninety-seven".