197436261 has 16 divisors (see below), whose sum is σ = 287484480. Its totient is φ = 119531520.

The previous prime is 197436259. The next prime is 197436269. The reversal of 197436261 is 162634791.

197436261 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 197436261 - 2¹ = 197436259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197436269) 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, 35455 + ... + 40643.

It is an arithmetic number, because the mean of its divisors is an integer number (17967780).

Almost surely, 2^197436261 is an apocalyptic number.

197436261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

197436261 is a deficient number, since it is larger than the sum of its proper divisors (90048219).

197436261 is a wasteful number, since it uses less digits than its factorization.

197436261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6356.

The product of its digits is 54432, while the sum is 39.

The square root of 197436261 is about 14051.2014077089. The cubic root of 197436261 is about 582.2939877009.

The spelling of 197436261 in words is "one hundred ninety-seven million, four hundred thirty-six thousand, two hundred sixty-one".