148729 has 4 divisors (see below), whose sum is σ = 169984. Its totient is φ = 127476.

The previous prime is 148727. The next prime is 148747. The reversal of 148729 is 927841.

148729 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.

It is a cyclic number.

It is not a de Polignac number, because 148729 - 2¹ = 148727 is a prime.

It is a d-powerful number, because it can be written as 1 + 4⁴ + 7⁵ + 8³ + 2¹⁷ + 9² .

It is a Duffinian number.

148729 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 148729.

It is not an unprimeable number, because it can be changed into a prime (148721) 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, 10617 + ... + 10630.

It is an arithmetic number, because the mean of its divisors is an integer number (42496).

2¹⁴⁸⁷²⁹ is an apocalyptic number.

It is an amenable number.

148729 is a deficient number, since it is larger than the sum of its proper divisors (21255).

148729 is an equidigital number, since it uses as much as digits as its factorization.

148729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21254.

The product of its digits is 4032, while the sum is 31.

The square root of 148729 is about 385.6539899962. The cubic root of 148729 is about 52.9824315807.

The spelling of 148729 in words is "one hundred forty-eight thousand, seven hundred twenty-nine".