151166 has 4 divisors (see below), whose sum is σ = 226752. Its totient is φ = 75582.

The previous prime is 151163. The next prime is 151169. The reversal of 151166 is 661151.

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: 661151 = 79 ⋅8369.

It is an interprime number because it is at equal distance from previous prime (151163) and next prime (151169).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151163) 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 as a sum of consecutive naturals, namely, 37790 + ... + 37793.

It is an arithmetic number, because the mean of its divisors is an integer number (56688).

2¹⁵¹¹⁶⁶ is an apocalyptic number.

151166 is a deficient number, since it is larger than the sum of its proper divisors (75586).

151166 is an equidigital number, since it uses as much as digits as its factorization.

151166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75585.

The product of its digits is 180, while the sum is 20.

The square root of 151166 is about 388.8007201639. The cubic root of 151166 is about 53.2702465861.

The spelling of 151166 in words is "one hundred fifty-one thousand, one hundred sixty-six".