1381401 has 16 divisors (see below), whose sum is σ = 2339200. Its totient is φ = 789264.

The previous prime is 1381397. The next prime is 1381409. The reversal of 1381401 is 1041831.

It is not a de Polignac number, because 1381401 - 2² = 1381397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1381409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3466 + ... + 3843.

It is an arithmetic number, because the mean of its divisors is an integer number (146200).

2^1381401 is an apocalyptic number.

It is an amenable number.

1381401 is a deficient number, since it is larger than the sum of its proper divisors (957799).

1381401 is an equidigital number, since it uses as much as digits as its factorization.

1381401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7325 (or 7319 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1381401 is about 1175.3301663788. The cubic root of 1381401 is about 111.3712913547.

The spelling of 1381401 in words is "one million, three hundred eighty-one thousand, four hundred one".