129200258257 has 8 divisors (see below), whose sum is σ = 147708748800. Its totient is φ = 110704595424.

The previous prime is 129200258249. The next prime is 129200258261. The reversal of 129200258257 is 752852002921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129200258257 - 2³ = 129200258249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129200258357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3185332 + ... + 3225637.

It is an arithmetic number, because the mean of its divisors is an integer number (18463593600).

Almost surely, 2^129200258257 is an apocalyptic number.

It is an amenable number.

129200258257 is a deficient number, since it is larger than the sum of its proper divisors (18508490543).

129200258257 is an equidigital number, since it uses as much as digits as its factorization.

129200258257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6413855.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 129200258257 in words is "one hundred twenty-nine billion, two hundred million, two hundred fifty-eight thousand, two hundred fifty-seven".