1387166 has 16 divisors (see below), whose sum is σ = 2404080. Its totient is φ = 593280.

The previous prime is 1387163. The next prime is 1387189. The reversal of 1387166 is 6617831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387163) 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 7 ways as a sum of consecutive naturals, for example, 1481 + ... + 2228.

It is an arithmetic number, because the mean of its divisors is an integer number (150255).

2^1387166 is an apocalyptic number.

1387166 is a deficient number, since it is larger than the sum of its proper divisors (1016914).

1387166 is a wasteful number, since it uses less digits than its factorization.

1387166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3739.

The product of its digits is 6048, while the sum is 32.

The square root of 1387166 is about 1177.7801153017. The cubic root of 1387166 is about 111.5260049140.

The spelling of 1387166 in words is "one million, three hundred eighty-seven thousand, one hundred sixty-six".