1331401 has 8 divisors (see below), whose sum is σ = 1404864. Its totient is φ = 1259280.

The previous prime is 1331399. The next prime is 1331411. The reversal of 1331401 is 1041331.

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 1331401 - 2¹ = 1331399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331411) 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, 2191 + ... + 2731.

It is an arithmetic number, because the mean of its divisors is an integer number (175608).

2^1331401 is an apocalyptic number.

It is an amenable number.

1331401 is a deficient number, since it is larger than the sum of its proper divisors (73463).

1331401 is a wasteful number, since it uses less digits than its factorization.

1331401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1331401 is about 1153.8635101259. The cubic root of 1331401 is about 110.0110457228.

Adding to 1331401 its reverse (1041331), we get a palindrome (2372732).

The spelling of 1331401 in words is "one million, three hundred thirty-one thousand, four hundred one".