197321061 has 16 divisors (see below), whose sum is σ = 316505600. Its totient is φ = 106820208.

The previous prime is 197321053. The next prime is 197321083. The reversal of 197321061 is 160123791.

197321061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 197321061 - 2³ = 197321053 is a prime.

It is a super-2 number, since 2×197321061² = 77871202228331442, 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 (197321051) 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, 246871 + ... + 247668.

It is an arithmetic number, because the mean of its divisors is an integer number (19781600).

Almost surely, 2^197321061 is an apocalyptic number.

It is an amenable number.

197321061 is a deficient number, since it is larger than the sum of its proper divisors (119184539).

197321061 is a wasteful number, since it uses less digits than its factorization.

197321061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494568.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 197321061 is about 14047.1015159712. The cubic root of 197321061 is about 582.1807134760.

The spelling of 197321061 in words is "one hundred ninety-seven million, three hundred twenty-one thousand, sixty-one".