197450101 has 4 divisors (see below), whose sum is σ = 206034912. Its totient is φ = 188865292.

The previous prime is 197450081. The next prime is 197450117. The reversal of 197450101 is 101054791.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101054791 = 41 ⋅2464751.

It is a cyclic number.

It is not a de Polignac number, because 197450101 - 2⁹ = 197449589 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 197450101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197450131) 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, 4292371 + ... + 4292416.

It is an arithmetic number, because the mean of its divisors is an integer number (51508728).

Almost surely, 2^197450101 is an apocalyptic number.

It is an amenable number.

197450101 is a deficient number, since it is larger than the sum of its proper divisors (8584811).

197450101 is an equidigital number, since it uses as much as digits as its factorization.

197450101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8584810.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 197450101 is about 14051.6938836569. The cubic root of 197450101 is about 582.3075933753.

The spelling of 197450101 in words is "one hundred ninety-seven million, four hundred fifty thousand, one hundred one".