197885363135 has 4 divisors (see below), whose sum is σ = 237462435768. Its totient is φ = 158308290504.

The previous prime is 197885363131. The next prime is 197885363173. The reversal of 197885363135 is 531363588791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 197885363135 - 2² = 197885363131 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 (197885363131) 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, 19788536309 + ... + 19788536318.

It is an arithmetic number, because the mean of its divisors is an integer number (59365608942).

Almost surely, 2^197885363135 is an apocalyptic number.

197885363135 is a deficient number, since it is larger than the sum of its proper divisors (39577072633).

197885363135 is an equidigital number, since it uses as much as digits as its factorization.

197885363135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39577072632.

The product of its digits is 16329600, while the sum is 59.

The spelling of 197885363135 in words is "one hundred ninety-seven billion, eight hundred eighty-five million, three hundred sixty-three thousand, one hundred thirty-five".