129064248 has 24 divisors (see below), whose sum is σ = 349549200. Its totient is φ = 43021392.

The previous prime is 129064237. The next prime is 129064249. The reversal of 129064248 is 842460921.

129064248 is a `hidden beast` number, since 1 + 2 + 9 + 0 + 642 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×129064248² = 33315160223611008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129064249) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 896208 + ... + 896351.

It is an arithmetic number, because the mean of its divisors is an integer number (14564550).

Almost surely, 2^129064248 is an apocalyptic number.

129064248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

129064248 is an abundant number, since it is smaller than the sum of its proper divisors (220484952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129064248 is a wasteful number, since it uses less digits than its factorization.

129064248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792571 (or 1792564 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 129064248 is about 11360.6447000159. The cubic root of 129064248 is about 505.3613046866.

The spelling of 129064248 in words is "one hundred twenty-nine million, sixty-four thousand, two hundred forty-eight".