197512971 has 8 divisors (see below), whose sum is σ = 263487120. Its totient is φ = 131607072.

The previous prime is 197512969. The next prime is 197513009. The reversal of 197512971 is 179215791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 197512971 - 2¹ = 197512969 is a prime.

It is a super-2 number, since 2×197512971² = 78022747426493682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197512921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9876 + ... + 22193.

It is an arithmetic number, because the mean of its divisors is an integer number (32935890).

Almost surely, 2^197512971 is an apocalyptic number.

197512971 is a deficient number, since it is larger than the sum of its proper divisors (65974149).

197512971 is a wasteful number, since it uses less digits than its factorization.

197512971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34125.

The product of its digits is 39690, while the sum is 42.

The square root of 197512971 is about 14053.9308024481. The cubic root of 197512971 is about 582.3693909186.

It can be divided in two parts, 19751 and 2971, that added together give a palindrome (22722).

The spelling of 197512971 in words is "one hundred ninety-seven million, five hundred twelve thousand, nine hundred seventy-one".