129044662 has 4 divisors (see below), whose sum is σ = 193566996. Its totient is φ = 64522330.

The previous prime is 129044647. The next prime is 129044689. The reversal of 129044662 is 266440921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 266440921 = 433 ⋅615337.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32261164 + ... + 32261167.

It is an arithmetic number, because the mean of its divisors is an integer number (48391749).

Almost surely, 2^129044662 is an apocalyptic number.

129044662 is a deficient number, since it is larger than the sum of its proper divisors (64522334).

129044662 is an equidigital number, since it uses as much as digits as its factorization.

129044662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64522333.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 129044662 is about 11359.7826563716. The cubic root of 129044662 is about 505.3357398810.

The spelling of 129044662 in words is "one hundred twenty-nine million, forty-four thousand, six hundred sixty-two".