1361606 has 4 divisors (see below), whose sum is σ = 2042412. Its totient is φ = 680802.

The previous prime is 1361603. The next prime is 1361609. The reversal of 1361606 is 6061631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6061631 = 61 ⋅99371.

It is an interprime number because it is at equal distance from previous prime (1361603) and next prime (1361609).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340400 + ... + 340403.

It is an arithmetic number, because the mean of its divisors is an integer number (510603).

2^1361606 is an apocalyptic number.

1361606 is a deficient number, since it is larger than the sum of its proper divisors (680806).

1361606 is an equidigital number, since it uses as much as digits as its factorization.

1361606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680805.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1361606 is about 1166.8787426292. The cubic root of 1361606 is about 110.8367592109.

The spelling of 1361606 in words is "one million, three hundred sixty-one thousand, six hundred six".