129798748 has 6 divisors (see below), whose sum is σ = 227147816. Its totient is φ = 64899372.

The previous prime is 129798737. The next prime is 129798787. The reversal of 129798748 is 847897921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16224840 + ... + 16224847.

Almost surely, 2^129798748 is an apocalyptic number.

It is an amenable number.

129798748 is a deficient number, since it is larger than the sum of its proper divisors (97349068).

129798748 is a wasteful number, since it uses less digits than its factorization.

129798748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32449691 (or 32449689 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 55.

The square root of 129798748 is about 11392.9253486539. The cubic root of 129798748 is about 506.3181561847.

The spelling of 129798748 in words is "one hundred twenty-nine million, seven hundred ninety-eight thousand, seven hundred forty-eight".