197142077 has 8 divisors (see below), whose sum is σ = 215242752. Its totient is φ = 179071200.

The previous prime is 197142053. The next prime is 197142089. The reversal of 197142077 is 770241791.

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

It is not a de Polignac number, because 197142077 - 2¹² = 197137981 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 197142077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197142577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7748 + ... + 21314.

It is an arithmetic number, because the mean of its divisors is an integer number (26905344).

Almost surely, 2^197142077 is an apocalyptic number.

It is an amenable number.

197142077 is a deficient number, since it is larger than the sum of its proper divisors (18100675).

197142077 is a wasteful number, since it uses less digits than its factorization.

197142077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14899.

The product of its (nonzero) digits is 24696, while the sum is 38.

The square root of 197142077 is about 14040.7292189544. The cubic root of 197142077 is about 582.0046340211.

The spelling of 197142077 in words is "one hundred ninety-seven million, one hundred forty-two thousand, seventy-seven".