1361873 has 4 divisors (see below), whose sum is σ = 1364208. Its totient is φ = 1359540.

The previous prime is 1361849. The next prime is 1361879. The reversal of 1361873 is 3781631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3781631 = 7 ⋅540233.

It is a cyclic number.

It is not a de Polignac number, because 1361873 - 2⁶ = 1361809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361879) 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 3 ways as a sum of consecutive naturals, for example, 578 + ... + 1748.

It is an arithmetic number, because the mean of its divisors is an integer number (341052).

2^1361873 is an apocalyptic number.

It is an amenable number.

1361873 is a deficient number, since it is larger than the sum of its proper divisors (2335).

1361873 is a wasteful number, since it uses less digits than its factorization.

1361873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334.

The product of its digits is 3024, while the sum is 29.

The square root of 1361873 is about 1166.9931447956. The cubic root of 1361873 is about 110.8440034702.

The spelling of 1361873 in words is "one million, three hundred sixty-one thousand, eight hundred seventy-three".