197201031 has 16 divisors (see below), whose sum is σ = 265252320. Its totient is φ = 130314240.

The previous prime is 197200999. The next prime is 197201041. The reversal of 197201031 is 130102791.

It is not a de Polignac number, because 197201031 - 2⁵ = 197200999 is a prime.

It is a super-2 number, since 2×197201031² = 77776493254925922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 197200992 and 197201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197201041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243355 + ... + 244163.

It is an arithmetic number, because the mean of its divisors is an integer number (16578270).

Almost surely, 2^197201031 is an apocalyptic number.

197201031 is a deficient number, since it is larger than the sum of its proper divisors (68051289).

197201031 is a wasteful number, since it uses less digits than its factorization.

197201031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 197201031 is about 14042.8284544105. The cubic root of 197201031 is about 582.0626430842.

The spelling of 197201031 in words is "one hundred ninety-seven million, two hundred one thousand, thirty-one".