1399541 has 8 divisors (see below), whose sum is σ = 1644384. Its totient is φ = 1174320.

The previous prime is 1399537. The next prime is 1399543. The reversal of 1399541 is 1459931.

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 1399541 - 2² = 1399537 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 1399498 and 1399507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4751 + ... + 5036.

It is an arithmetic number, because the mean of its divisors is an integer number (205548).

2^1399541 is an apocalyptic number.

1399541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1399541 is a deficient number, since it is larger than the sum of its proper divisors (244843).

1399541 is a wasteful number, since it uses less digits than its factorization.

1399541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9811.

The product of its digits is 4860, while the sum is 32.

The square root of 1399541 is about 1183.0219778178. The cubic root of 1399541 is about 111.8566671998.

The spelling of 1399541 in words is "one million, three hundred ninety-nine thousand, five hundred forty-one".