1671275201 has 4 divisors (see below), whose sum is σ = 1679934852. Its totient is φ = 1662615552.

The previous prime is 1671275189. The next prime is 1671275261. The reversal of 1671275201 is 1025721761.

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 318801025 + 1352474176 = 17855^2 + 36776^2 .

It is a cyclic number.

It is not a de Polignac number, because 1671275201 - 2¹⁰ = 1671274177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1671275261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4329536 + ... + 4329921.

It is an arithmetic number, because the mean of its divisors is an integer number (419983713).

Almost surely, 2^1671275201 is an apocalyptic number.

It is an amenable number.

1671275201 is a deficient number, since it is larger than the sum of its proper divisors (8659651).

1671275201 is an equidigital number, since it uses as much as digits as its factorization.

1671275201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8659650.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 1671275201 is about 40881.2328703526. The cubic root of 1671275201 is about 1186.7229001235.

Adding to 1671275201 its reverse (1025721761), we get a palindrome (2696996962).

The spelling of 1671275201 in words is "one billion, six hundred seventy-one million, two hundred seventy-five thousand, two hundred one".