129473 has 4 divisors (see below), whose sum is σ = 132528. Its totient is φ = 126420.

The previous prime is 129469. The next prime is 129491. The reversal of 129473 is 374921.

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: 374921 = 37 ⋅10133.

It is not a de Polignac number, because 129473 - 2² = 129469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129403) 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, 1463 + ... + 1548.

It is an arithmetic number, because the mean of its divisors is an integer number (33132).

2¹²⁹⁴⁷³ is an apocalyptic number.

It is an amenable number.

129473 is a deficient number, since it is larger than the sum of its proper divisors (3055).

129473 is an equidigital number, since it uses as much as digits as its factorization.

129473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054.

The product of its digits is 1512, while the sum is 26.

The square root of 129473 is about 359.8235678774. The cubic root of 129473 is about 50.5894242767.

The spelling of 129473 in words is "one hundred twenty-nine thousand, four hundred seventy-three".