1601704201 has 4 divisors (see below), whose sum is σ = 1602156304. Its totient is φ = 1601252100.

The previous prime is 1601704189. The next prime is 1601704213. The reversal of 1601704201 is 1024071061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1601704189) and next prime (1601704213).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601704201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601704271) 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, 220695 + ... + 227836.

It is an arithmetic number, because the mean of its divisors is an integer number (400539076).

Almost surely, 2^1601704201 is an apocalyptic number.

It is an amenable number.

1601704201 is a deficient number, since it is larger than the sum of its proper divisors (452103).

1601704201 is an equidigital number, since it uses as much as digits as its factorization.

1601704201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452102.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1601704201 is about 40021.2968430559. The cubic root of 1601704201 is about 1170.0222074339.

Adding to 1601704201 its reverse (1024071061), we get a palindrome (2625775262).

The spelling of 1601704201 in words is "one billion, six hundred one million, seven hundred four thousand, two hundred one".