129081452 has 12 divisors (see below), whose sum is σ = 226753296. Its totient is φ = 64294800.

The previous prime is 129081437. The next prime is 129081457. The reversal of 129081452 is 254180921.

It is not an unprimeable number, because it can be changed into a prime (129081457) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 60299 + ... + 62402.

It is an arithmetic number, because the mean of its divisors is an integer number (18896108).

Almost surely, 2^129081452 is an apocalyptic number.

It is an amenable number.

129081452 is a deficient number, since it is larger than the sum of its proper divisors (97671844).

129081452 is a wasteful number, since it uses less digits than its factorization.

129081452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122968 (or 122966 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 129081452 is about 11361.4018501240. The cubic root of 129081452 is about 505.3837582314.

The spelling of 129081452 in words is "one hundred twenty-nine million, eighty-one thousand, four hundred fifty-two".