197444453 has 8 divisors (see below), whose sum is σ = 201504600. Its totient is φ = 193425408.

The previous prime is 197444449. The next prime is 197444459. The reversal of 197444453 is 354444791.

197444453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13380964 + 184063489 = 3658^2 + 13567^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 197444453 - 2² = 197444449 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 197444453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197444459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476 + ... + 19877.

It is an arithmetic number, because the mean of its divisors is an integer number (25188075).

Almost surely, 2^197444453 is an apocalyptic number.

It is an amenable number.

197444453 is a deficient number, since it is larger than the sum of its proper divisors (4060147).

197444453 is a wasteful number, since it uses less digits than its factorization.

197444453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20551.

The product of its digits is 241920, while the sum is 41.

The square root of 197444453 is about 14051.4929100078. The cubic root of 197444453 is about 582.3020410786.

The spelling of 197444453 in words is "one hundred ninety-seven million, four hundred forty-four thousand, four hundred fifty-three".