129484787 has 2 divisors, whose sum is σ = 129484788. Its totient is φ = 129484786.

The previous prime is 129484783. The next prime is 129484807. The reversal of 129484787 is 787484921.

It is a weak prime.

It is an emirp because it is prime and its reverse (787484921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129484787 - 2² = 129484783 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (129484783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64742393 + 64742394.

It is an arithmetic number, because the mean of its divisors is an integer number (64742394).

Almost surely, 2^129484787 is an apocalyptic number.

129484787 is a deficient number, since it is larger than the sum of its proper divisors (1).

129484787 is an equidigital number, since it uses as much as digits as its factorization.

129484787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 50.

The square root of 129484787 is about 11379.1382362638. The cubic root of 129484787 is about 505.9095942157.

The spelling of 129484787 in words is "one hundred twenty-nine million, four hundred eighty-four thousand, seven hundred eighty-seven".