1382720201 has 4 divisors (see below), whose sum is σ = 1386682500. Its totient is φ = 1378757904.

The previous prime is 1382720189. The next prime is 1382720221. The reversal of 1382720201 is 1020272831.

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 1267716025 + 115004176 = 35605^2 + 10724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1382720201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1382720221) 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, 1980626 + ... + 1981323.

It is an arithmetic number, because the mean of its divisors is an integer number (346670625).

Almost surely, 2^1382720201 is an apocalyptic number.

It is an amenable number.

1382720201 is a deficient number, since it is larger than the sum of its proper divisors (3962299).

1382720201 is an equidigital number, since it uses as much as digits as its factorization.

1382720201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3962298.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1382720201 is about 37184.9458921215. The cubic root of 1382720201 is about 1114.0673227667.

The spelling of 1382720201 in words is "one billion, three hundred eighty-two million, seven hundred twenty thousand, two hundred one".