129045462 has 64 divisors (see below), whose sum is σ = 320323584. Its totient is φ = 33747840.

The previous prime is 129045443. The next prime is 129045463. The reversal of 129045462 is 264540921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129045463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68412 + ... + 70272.

It is an arithmetic number, because the mean of its divisors is an integer number (5005056).

Almost surely, 2^129045462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129045462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160161792).

129045462 is an abundant number, since it is smaller than the sum of its proper divisors (191278122).

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

129045462 is a wasteful number, since it uses less digits than its factorization.

129045462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 129045462 is about 11359.8178682583. The cubic root of 129045462 is about 505.3367841390.

The spelling of 129045462 in words is "one hundred twenty-nine million, forty-five thousand, four hundred sixty-two".