1378201 has 8 divisors (see below), whose sum is σ = 1512000. Its totient is φ = 1245840.

The previous prime is 1378199. The next prime is 1378217. The reversal of 1378201 is 1028731.

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 1378201 - 2¹ = 1378199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1378231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3660 + ... + 4018.

It is an arithmetic number, because the mean of its divisors is an integer number (189000).

2^1378201 is an apocalyptic number.

1378201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1378201 is a deficient number, since it is larger than the sum of its proper divisors (133799).

1378201 is a wasteful number, since it uses less digits than its factorization.

1378201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719.

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

The square root of 1378201 is about 1173.9680574871. The cubic root of 1378201 is about 111.2852280811.

It can be divided in two parts, 137 and 8201, that added together give a palindrome (8338).

The spelling of 1378201 in words is "one million, three hundred seventy-eight thousand, two hundred one".