197950101 has 4 divisors (see below), whose sum is σ = 263933472. Its totient is φ = 131966732.

The previous prime is 197950099. The next prime is 197950127. The reversal of 197950101 is 101059791.

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 197950101 - 2¹ = 197950099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197950171) 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, 32991681 + ... + 32991686.

It is an arithmetic number, because the mean of its divisors is an integer number (65983368).

Almost surely, 2^197950101 is an apocalyptic number.

It is an amenable number.

197950101 is a deficient number, since it is larger than the sum of its proper divisors (65983371).

197950101 is an equidigital number, since it uses as much as digits as its factorization.

197950101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65983370.

The product of its (nonzero) digits is 2835, while the sum is 33.

The square root of 197950101 is about 14069.4740839876. The cubic root of 197950101 is about 582.7987020637.

The spelling of 197950101 in words is "one hundred ninety-seven million, nine hundred fifty thousand, one hundred one".