129436130 has 16 divisors (see below), whose sum is σ = 246690360. Its totient is φ = 48728832.

The previous prime is 129436117. The next prime is 129436133. The reversal of 129436130 is 31634921.

It is a Cunningham number, because it is equal to 11377²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 129436129 + 1 = 11377^2 + 1^2 .

It is a junction number, because it is equal to n+sod(n) for n = 129436093 and 129436102.

It is not an unprimeable number, because it can be changed into a prime (129436133) 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, 380525 + ... + 380864.

Almost surely, 2^129436130 is an apocalyptic number.

129436130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129436130 is a deficient number, since it is larger than the sum of its proper divisors (117254230).

129436130 is a wasteful number, since it uses less digits than its factorization.

129436130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761413.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 129436130 is about 11377.0000439483. Note that the first 4 decimals coincide. The cubic root of 129436130 is about 505.8462170739.

The spelling of 129436130 in words is "one hundred twenty-nine million, four hundred thirty-six thousand, one hundred thirty".