1339001 has 2 divisors, whose sum is σ = 1339002. Its totient is φ = 1339000.

The previous prime is 1338979. The next prime is 1339003. The reversal of 1339001 is 1009331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1263376 + 75625 = 1124^2 + 275^2 .

It is a cyclic number.

It is not a de Polignac number, because 1339001 - 2¹⁰ = 1337977 is a prime.

Together with 1339003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1339003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669500 + 669501.

It is an arithmetic number, because the mean of its divisors is an integer number (669501).

2^1339001 is an apocalyptic number.

It is an amenable number.

1339001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1339001 is an equidigital number, since it uses as much as digits as its factorization.

1339001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1339001 is about 1157.1521075468. The cubic root of 1339001 is about 110.2199730378.

The spelling of 1339001 in words is "one million, three hundred thirty-nine thousand, one".