134661197 has 4 divisors (see below), whose sum is σ = 146903136. Its totient is φ = 122419260.

The previous prime is 134661173. The next prime is 134661217. The reversal of 134661197 is 791166431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134661197 - 2⁶ = 134661133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134661197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134661497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6120953 + ... + 6120974.

It is an arithmetic number, because the mean of its divisors is an integer number (36725784).

Almost surely, 2^134661197 is an apocalyptic number.

It is an amenable number.

134661197 is a deficient number, since it is larger than the sum of its proper divisors (12241939).

134661197 is a wasteful number, since it uses less digits than its factorization.

134661197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241938.

The product of its digits is 27216, while the sum is 38.

The square root of 134661197 is about 11604.3611198549. The cubic root of 134661197 is about 512.5632800705.

The spelling of 134661197 in words is "one hundred thirty-four million, six hundred sixty-one thousand, one hundred ninety-seven".