1361671 has 4 divisors (see below), whose sum is σ = 1364272. Its totient is φ = 1359072.

The previous prime is 1361629. The next prime is 1361677. The reversal of 1361671 is 1761631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1761631 = 67 ⋅26293.

It is a cyclic number.

It is not a de Polignac number, because 1361671 - 2¹³ = 1353479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210 + ... + 1663.

It is an arithmetic number, because the mean of its divisors is an integer number (341068).

2^1361671 is an apocalyptic number.

1361671 is a deficient number, since it is larger than the sum of its proper divisors (2601).

1361671 is an equidigital number, since it uses as much as digits as its factorization.

1361671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600.

The product of its digits is 756, while the sum is 25.

The square root of 1361671 is about 1166.9065943768. The cubic root of 1361671 is about 110.8385228819.

The spelling of 1361671 in words is "one million, three hundred sixty-one thousand, six hundred seventy-one".