129484950 has 144 divisors (see below), whose sum is σ = 379975680. Its totient is φ = 29090880.

The previous prime is 129484939. The next prime is 129484951. The reversal of 129484950 is 59484921.

129484950 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129484951) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 580539 + ... + 580761.

It is an arithmetic number, because the mean of its divisors is an integer number (2638720).

Almost surely, 2^129484950 is an apocalyptic number.

129484950 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 129484950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189987840).

129484950 is an abundant number, since it is smaller than the sum of its proper divisors (250490730).

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

129484950 is a wasteful number, since it uses less digits than its factorization.

129484950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 129484950 is about 11379.1453984910. The cubic root of 129484950 is about 505.9098065012.

The spelling of 129484950 in words is "one hundred twenty-nine million, four hundred eighty-four thousand, nine hundred fifty".