2097697045 has 4 divisors (see below), whose sum is σ = 2517236460. Its totient is φ = 1678157632.

The previous prime is 2097697027. The next prime is 2097697061. The reversal of 2097697045 is 5407967902.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1115626801 + 982070244 = 33401^2 + 31338^2 .

It is a cyclic number.

It is not a de Polignac number, because 2097697045 - 2⁵ = 2097697013 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2097697045.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 209769700 + ... + 209769709.

It is an arithmetic number, because the mean of its divisors is an integer number (629309115).

Almost surely, 2^2097697045 is an apocalyptic number.

It is an amenable number.

2097697045 is a deficient number, since it is larger than the sum of its proper divisors (419539415).

2097697045 is an equidigital number, since it uses as much as digits as its factorization.

2097697045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419539414.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 2097697045 is about 45800.6227577748. The cubic root of 2097697045 is about 1280.1108800839.

The spelling of 2097697045 in words is "two billion, ninety-seven million, six hundred ninety-seven thousand, forty-five".