197142079 has 4 divisors (see below), whose sum is σ = 199918800. Its totient is φ = 194365360.

The previous prime is 197142053. The next prime is 197142089. The reversal of 197142079 is 970241791.

197142079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970241791 = 15601 ⋅62191.

It is a cyclic number.

It is not a de Polignac number, because 197142079 - 2¹⁹ = 196617791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197142019) 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, 1388254 + ... + 1388395.

It is an arithmetic number, because the mean of its divisors is an integer number (49979700).

Almost surely, 2^197142079 is an apocalyptic number.

197142079 is a deficient number, since it is larger than the sum of its proper divisors (2776721).

197142079 is an equidigital number, since it uses as much as digits as its factorization.

197142079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776720.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 197142079 is about 14040.7292901758. The cubic root of 197142079 is about 582.0046359893.

The spelling of 197142079 in words is "one hundred ninety-seven million, one hundred forty-two thousand, seventy-nine".