149867 has 2 divisors, whose sum is σ = 149868. Its totient is φ = 149866.

The previous prime is 149861. The next prime is 149873. The reversal of 149867 is 768941.

149867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (149861) and next prime (149873).

It is an emirp because it is prime and its reverse (768941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149867 - 2⁶ = 149803 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (149861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74933 + 74934.

It is an arithmetic number, because the mean of its divisors is an integer number (74934).

2¹⁴⁹⁸⁶⁷ is an apocalyptic number.

149867 is a deficient number, since it is larger than the sum of its proper divisors (1).

149867 is an equidigital number, since it uses as much as digits as its factorization.

149867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 149867 is about 387.1265942815. The cubic root of 149867 is about 53.1172200833.

The spelling of 149867 in words is "one hundred forty-nine thousand, eight hundred sixty-seven".