129224970 has 192 divisors, whose sum is σ = 407586816. Its totient is φ = 28848960.

The previous prime is 129224969. The next prime is 129224983. The reversal of 129224970 is 79422921.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1207657 + ... + 1207763.

It is an arithmetic number, because the mean of its divisors is an integer number (2122848).

Almost surely, 2^129224970 is an apocalyptic number.

129224970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 129224970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203793408).

129224970 is an abundant number, since it is smaller than the sum of its proper divisors (278361846).

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

129224970 is a wasteful number, since it uses less digits than its factorization.

129224970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 129224970 is about 11367.7161294607. The cubic root of 129224970 is about 505.5709909191.

It can be divided in two parts, 1292 and 24970, that added together give a palindrome (26262).

The spelling of 129224970 in words is "one hundred twenty-nine million, two hundred twenty-four thousand, nine hundred seventy".