1361669 has 8 divisors (see below), whose sum is σ = 1442112. Its totient is φ = 1283040.

The previous prime is 1361629. The next prime is 1361677. The reversal of 1361669 is 9661631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361669 is a prime.

It is a super-2 number, since 2×1361669² = 3708284931122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274 + ... + 2084.

It is an arithmetic number, because the mean of its divisors is an integer number (180264).

2^1361669 is an apocalyptic number.

It is an amenable number.

1361669 is a deficient number, since it is larger than the sum of its proper divisors (80443).

1361669 is an equidigital number, since it uses as much as digits as its factorization.

1361669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907.

The product of its digits is 5832, while the sum is 32.

The square root of 1361669 is about 1166.9057374098. The cubic root of 1361669 is about 110.8384686159.

The spelling of 1361669 in words is "one million, three hundred sixty-one thousand, six hundred sixty-nine".