197136400349 has 8 divisors (see below), whose sum is σ = 228471965568. Its totient is φ = 166594140720.

The previous prime is 197136400337. The next prime is 197136400369. The reversal of 197136400349 is 943004631791.

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

It is not a de Polignac number, because 197136400349 - 2¹² = 197136396253 is a prime.

It is a super-2 number, since 2×197136400349² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197136400369) 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, 198325862 + ... + 198326855.

It is an arithmetic number, because the mean of its divisors is an integer number (28558995696).

Almost surely, 2^197136400349 is an apocalyptic number.

It is an amenable number.

197136400349 is a deficient number, since it is larger than the sum of its proper divisors (31335565219).

197136400349 is an equidigital number, since it uses as much as digits as its factorization.

197136400349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396652795.

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 197136400349 in words is "one hundred ninety-seven billion, one hundred thirty-six million, four hundred thousand, three hundred forty-nine".