166037 has 4 divisors (see below), whose sum is σ = 173280. Its totient is φ = 158796.

The previous prime is 166031. The next prime is 166043. The reversal of 166037 is 730661.

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.

It is an interprime number because it is at equal distance from previous prime (166031) and next prime (166043).

It is a cyclic number.

It is not a de Polignac number, because 166037 - 2⁴ = 166021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 7219 = 166037 / (1 + 6 + 6 + 0 + 3 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3587 + ... + 3632.

It is an arithmetic number, because the mean of its divisors is an integer number (43320).

2¹⁶⁶⁰³⁷ is an apocalyptic number.

It is an amenable number.

166037 is a deficient number, since it is larger than the sum of its proper divisors (7243).

166037 is an equidigital number, since it uses as much as digits as its factorization.

166037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7242.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 166037 is about 407.4763796835. The cubic root of 166037 is about 54.9627295706.

Adding to 166037 its reverse (730661), we get a palindrome (896698).

The spelling of 166037 in words is "one hundred sixty-six thousand, thirty-seven".