197846545 has 8 divisors (see below), whose sum is σ = 255678696. Its totient is φ = 146102016.

The previous prime is 197846543. The next prime is 197846581. The reversal of 197846545 is 545648791.

It is a happy number.

197846545 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 3411409 + 194435136 = 1847^2 + 13944^2 .

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 197846545 - 2¹ = 197846543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197846543) 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, 1521832 + ... + 1521961.

It is an arithmetic number, because the mean of its divisors is an integer number (31959837).

Almost surely, 2^197846545 is an apocalyptic number.

It is an amenable number.

197846545 is a deficient number, since it is larger than the sum of its proper divisors (57832151).

197846545 is a wasteful number, since it uses less digits than its factorization.

197846545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043811.

The product of its digits is 1209600, while the sum is 49.

The square root of 197846545 is about 14065.7934365609. The cubic root of 197846545 is about 582.6970555218.

The spelling of 197846545 in words is "one hundred ninety-seven million, eight hundred forty-six thousand, five hundred forty-five".