197401601401 has 27 divisors (see below), whose sum is σ = 205685990797. Its totient is φ = 189449093600.

The previous prime is 197401601393. The next prime is 197401601407. The reversal of 197401601401 is 104106104791.

The square root of 197401601401 is 444299.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 104513191225 + 92888410176 = 323285^2 + 304776^2 .

It is not a de Polignac number, because 197401601401 - 2³ = 197401601393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197401601407) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1954471251 + ... + 1954471351.

Almost surely, 2^197401601401 is an apocalyptic number.

197401601401 is the 444299-th square number.

197401601401 is the 222150-th centered octagonal number.

It is an amenable number.

197401601401 is a deficient number, since it is larger than the sum of its proper divisors (8284389396).

197401601401 is an frugal number, since it uses more digits than its factorization.

197401601401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 197401601401 in words is "one hundred ninety-seven billion, four hundred one million, six hundred one thousand, four hundred one".