129054419 has 8 divisors (see below), whose sum is σ = 139098960. Its totient is φ = 119026656.

The previous prime is 129054391. The next prime is 129054421. The reversal of 129054419 is 914450921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129054419 is a prime.

It is a super-2 number, since 2×129054419² = 33310086126855122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129054439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15104 + ... + 22050.

It is an arithmetic number, because the mean of its divisors is an integer number (17387370).

Almost surely, 2^129054419 is an apocalyptic number.

129054419 is a deficient number, since it is larger than the sum of its proper divisors (10044541).

129054419 is a wasteful number, since it uses less digits than its factorization.

129054419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8389.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 129054419 is about 11360.2121018932. The cubic root of 129054419 is about 505.3484756178.

The spelling of 129054419 in words is "one hundred twenty-nine million, fifty-four thousand, four hundred nineteen".