2171373603 has 48 divisors (see below), whose sum is σ = 3578507424. Its totient is φ = 1163688960.

The previous prime is 2171373563. The next prime is 2171373613. The reversal of 2171373603 is 3063731712.

It is a happy number.

It is a Cunningham number, because it is equal to 46598²-1.

It is not a de Polignac number, because 2171373603 - 2⁹ = 2171373091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2171373613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 790813 + ... + 793553.

It is an arithmetic number, because the mean of its divisors is an integer number (74552238).

Almost surely, 2^2171373603 is an apocalyptic number.

2171373603 is a deficient number, since it is larger than the sum of its proper divisors (1407133821).

2171373603 is a wasteful number, since it uses less digits than its factorization.

2171373603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092 (or 3085 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 2171373603 is about 46597.9999892699. Note that the first 4 decimals coincide. The cubic root of 2171373603 is about 1294.9257030665.

The spelling of 2171373603 in words is "two billion, one hundred seventy-one million, three hundred seventy-three thousand, six hundred three".