129455701 has 4 divisors (see below), whose sum is σ = 129948192. Its totient is φ = 128963212.

The previous prime is 129455693. The next prime is 129455717. The reversal of 129455701 is 107554921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 129455701 - 2³ = 129455693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129455771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245851 + ... + 246376.

It is an arithmetic number, because the mean of its divisors is an integer number (32487048).

Almost surely, 2^129455701 is an apocalyptic number.

It is an amenable number.

129455701 is a deficient number, since it is larger than the sum of its proper divisors (492491).

129455701 is an equidigital number, since it uses as much as digits as its factorization.

129455701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492490.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 129455701 is about 11377.8601239425. The cubic root of 129455701 is about 505.8717107733.

The spelling of 129455701 in words is "one hundred twenty-nine million, four hundred fifty-five thousand, seven hundred one".