129554870 has 8 divisors (see below), whose sum is σ = 233198784. Its totient is φ = 51821944.

The previous prime is 129554833. The next prime is 129554891. The reversal of 129554870 is 78455921.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6477734 + ... + 6477753.

It is an arithmetic number, because the mean of its divisors is an integer number (29149848).

Almost surely, 2^129554870 is an apocalyptic number.

129554870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129554870 is a deficient number, since it is larger than the sum of its proper divisors (103643914).

129554870 is a wasteful number, since it uses less digits than its factorization.

129554870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12955494.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 129554870 is about 11382.2172708133. The cubic root of 129554870 is about 506.0008514413. Note that the first 3 decimals are identical.

It can be divided in two parts, 1295 and 54870, that added together give a palindrome (56165).

The spelling of 129554870 in words is "one hundred twenty-nine million, five hundred fifty-four thousand, eight hundred seventy".