196597945 has 16 divisors (see below), whose sum is σ = 255115008. Its totient is φ = 144874240.

The previous prime is 196597913. The next prime is 196597949. The reversal of 196597945 is 549795691.

It is not a de Polignac number, because 196597945 - 2⁵ = 196597913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196597949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20611 + ... + 28600.

It is an arithmetic number, because the mean of its divisors is an integer number (15944688).

Almost surely, 2^196597945 is an apocalyptic number.

It is an amenable number.

196597945 is a deficient number, since it is larger than the sum of its proper divisors (58517063).

196597945 is a wasteful number, since it uses less digits than its factorization.

196597945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49280.

The product of its digits is 3061800, while the sum is 55.

The square root of 196597945 is about 14021.3389160950. The cubic root of 196597945 is about 581.4686768053.

The spelling of 196597945 in words is "one hundred ninety-six million, five hundred ninety-seven thousand, nine hundred forty-five".