2045421597 has 8 divisors (see below), whose sum is σ = 2730653856. Its totient is φ = 1361901872.

The previous prime is 2045421569. The next prime is 2045421629. The reversal of 2045421597 is 7951245402.

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 2045421597 - 2²⁰ = 2044373021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045421797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425343 + ... + 430124.

It is an arithmetic number, because the mean of its divisors is an integer number (341331732).

Almost surely, 2^2045421597 is an apocalyptic number.

It is an amenable number.

2045421597 is a deficient number, since it is larger than the sum of its proper divisors (685232259).

2045421597 is an equidigital number, since it uses as much as digits as its factorization.

2045421597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856267.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 2045421597 is about 45226.3374263272. The cubic root of 2045421597 is about 1269.3876803120.

Adding to 2045421597 its reverse (7951245402), we get a palindrome (9996666999).

The spelling of 2045421597 in words is "two billion, forty-five million, four hundred twenty-one thousand, five hundred ninety-seven".