1361709 has 12 divisors (see below), whose sum is σ = 1995552. Its totient is φ = 894600.

The previous prime is 1361707. The next prime is 1361713. The reversal of 1361709 is 9071631.

It is not a de Polignac number, because 1361709 - 2¹ = 1361707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 427 + ... + 1704.

It is an arithmetic number, because the mean of its divisors is an integer number (166296).

2^1361709 is an apocalyptic number.

It is an amenable number.

1361709 is a deficient number, since it is larger than the sum of its proper divisors (633843).

1361709 is a wasteful number, since it uses less digits than its factorization.

1361709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208 (or 2205 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 1361709 is about 1166.9228766290. The cubic root of 1361709 is about 110.8395539250.

The spelling of 1361709 in words is "one million, three hundred sixty-one thousand, seven hundred nine".