1387169 has 8 divisors (see below), whose sum is σ = 1615680. Its totient is φ = 1166256.

The previous prime is 1387163. The next prime is 1387189. The reversal of 1387169 is 9617831.

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

It is not a de Polignac number, because 1387169 - 2¹⁶ = 1321633 is a prime.

It is a super-2 number, since 2×1387169² = 3848475669122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1387163) 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, 1499 + ... + 2240.

It is an arithmetic number, because the mean of its divisors is an integer number (201960).

2^1387169 is an apocalyptic number.

It is an amenable number.

1387169 is a deficient number, since it is larger than the sum of its proper divisors (228511).

1387169 is an equidigital number, since it uses as much as digits as its factorization.

1387169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3799.

The product of its digits is 9072, while the sum is 35.

The square root of 1387169 is about 1177.7813888834. The cubic root of 1387169 is about 111.5260853124.

The spelling of 1387169 in words is "one million, three hundred eighty-seven thousand, one hundred sixty-nine".