1391201 has 8 divisors (see below), whose sum is σ = 1659264. Its totient is φ = 1140480.

The previous prime is 1391189. The next prime is 1391207. The reversal of 1391201 is 1021931.

It is a happy number.

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 1391201 - 2¹⁰ = 1390177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1391201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391207) 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, 4160 + ... + 4481.

It is an arithmetic number, because the mean of its divisors is an integer number (207408).

2^1391201 is an apocalyptic number.

It is an amenable number.

1391201 is a deficient number, since it is larger than the sum of its proper divisors (268063).

1391201 is an equidigital number, since it uses as much as digits as its factorization.

1391201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8671.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 1391201 is about 1179.4918397344. The cubic root of 1391201 is about 111.6340361578.

The spelling of 1391201 in words is "one million, three hundred ninety-one thousand, two hundred one".