148917 has 4 divisors (see below), whose sum is σ = 198560. Its totient is φ = 99276.

The previous prime is 148913. The next prime is 148921. The reversal of 148917 is 719841.

148917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 719841 = 3 ⋅239947.

It is an interprime number because it is at equal distance from previous prime (148913) and next prime (148921).

It is not a de Polignac number, because 148917 - 2² = 148913 is a prime.

It is a D-number.

It is a Duffinian number.

148917 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24817 + ... + 24822.

It is an arithmetic number, because the mean of its divisors is an integer number (49640).

2¹⁴⁸⁹¹⁷ is an apocalyptic number.

It is an amenable number.

148917 is a deficient number, since it is larger than the sum of its proper divisors (49643).

148917 is an equidigital number, since it uses as much as digits as its factorization.

148917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49642.

The product of its digits is 2016, while the sum is 30.

The square root of 148917 is about 385.8976548257. The cubic root of 148917 is about 53.0047462226.

The spelling of 148917 in words is "one hundred forty-eight thousand, nine hundred seventeen".