129411770 has 8 divisors (see below), whose sum is σ = 232941204. Its totient is φ = 51764704.

The previous prime is 129411761. The next prime is 129411787. The reversal of 129411770 is 77114921.

It can be written as a sum of positive squares in 2 ways, for example, as 129254161 + 157609 = 11369^2 + 397^2 .

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

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, 6470579 + ... + 6470598.

Almost surely, 2^129411770 is an apocalyptic number.

129411770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129411770 is a deficient number, since it is larger than the sum of its proper divisors (103529434).

129411770 is a wasteful number, since it uses less digits than its factorization.

129411770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12941184.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 129411770 is about 11375.9294125799. The cubic root of 129411770 is about 505.8144815068.

The spelling of 129411770 in words is "one hundred twenty-nine million, four hundred eleven thousand, seven hundred seventy".