129103949162 has 8 divisors (see below), whose sum is σ = 193663740996. Its totient is φ = 64549368832.

The previous prime is 129103949141. The next prime is 129103949197. The reversal of 129103949162 is 261949301921.

It can be written as a sum of positive squares in 2 ways, for example, as 77339053801 + 51764895361 = 278099^2 + 227519^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240343 + ... + 1340394.

Almost surely, 2^129103949162 is an apocalyptic number.

129103949162 is a deficient number, since it is larger than the sum of its proper divisors (64559791834).

129103949162 is a wasteful number, since it uses less digits than its factorization.

129103949162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605752.

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 129103949162 in words is "one hundred twenty-nine billion, one hundred three million, nine hundred forty-nine thousand, one hundred sixty-two".