148891 has 2 divisors, whose sum is σ = 148892. Its totient is φ = 148890.

The previous prime is 148873. The next prime is 148913. The reversal of 148891 is 198841.

148891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (198841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148891 - 2⁵ = 148859 is a prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (148861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74445 + 74446.

It is an arithmetic number, because the mean of its divisors is an integer number (74446).

2¹⁴⁸⁸⁹¹ is an apocalyptic number.

148891 is a deficient number, since it is larger than the sum of its proper divisors (1).

148891 is an equidigital number, since it uses as much as digits as its factorization.

148891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 31.

The square root of 148891 is about 385.8639656667. The cubic root of 148891 is about 53.0016612746.

The spelling of 148891 in words is "one hundred forty-eight thousand, eight hundred ninety-one".