2745208197 has 6 divisors (see below), whose sum is σ = 3965300742. Its totient is φ = 1830138792.

The previous prime is 2745208189. The next prime is 2745208201. The reversal of 2745208197 is 7918025472.

It is a happy number.

2745208197 is a `hidden beast` number, since 2 + 7 + 452 + 0 + 8 + 197 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2527173441 + 218034756 = 50271^2 + 14766^2 .

It is not a de Polignac number, because 2745208197 - 2³ = 2745208189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745208187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152511558 + ... + 152511575.

It is an arithmetic number, because the mean of its divisors is an integer number (660883457).

Almost surely, 2^2745208197 is an apocalyptic number.

It is an amenable number.

2745208197 is a deficient number, since it is larger than the sum of its proper divisors (1220092545).

2745208197 is a wasteful number, since it uses less digits than its factorization.

2745208197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305023139 (or 305023136 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 2745208197 is about 52394.7344396362. The cubic root of 2745208197 is about 1400.2054455303.

The spelling of 2745208197 in words is "two billion, seven hundred forty-five million, two hundred eight thousand, one hundred ninety-seven".