129045135346 has 4 divisors (see below), whose sum is σ = 193567703022. Its totient is φ = 64522567672.

The previous prime is 129045135343. The next prime is 129045135353. The reversal of 129045135346 is 643531540921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 124909230625 + 4135904721 = 353425^2 + 64311^2 .

It is not an unprimeable number, because it can be changed into a prime (129045135343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32261283835 + ... + 32261283838.

Almost surely, 2^129045135346 is an apocalyptic number.

129045135346 is a deficient number, since it is larger than the sum of its proper divisors (64522567676).

129045135346 is an equidigital number, since it uses as much as digits as its factorization.

129045135346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64522567675.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 129045135346 in words is "one hundred twenty-nine billion, forty-five million, one hundred thirty-five thousand, three hundred forty-six".