129541473 has 6 divisors (see below), whose sum is σ = 187115474. Its totient is φ = 86360976.

The previous prime is 129541459. The next prime is 129541483. The reversal of 129541473 is 374145921.

It can be written as a sum of positive squares in only one way, i.e., 127983969 + 1557504 = 11313^2 + 1248^2 .

It is not a de Polignac number, because 129541473 - 2⁴ = 129541457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129541483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7196740 + ... + 7196757.

Almost surely, 2^129541473 is an apocalyptic number.

It is an amenable number.

129541473 is a deficient number, since it is larger than the sum of its proper divisors (57574001).

129541473 is a wasteful number, since it uses less digits than its factorization.

129541473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14393503 (or 14393500 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 129541473 is about 11381.6287498758. The cubic root of 129541473 is about 505.9834093411.

The spelling of 129541473 in words is "one hundred twenty-nine million, five hundred forty-one thousand, four hundred seventy-three".