129701099 has 4 divisors (see below), whose sum is σ = 141492120. Its totient is φ = 117910080.

The previous prime is 129701093. The next prime is 129701101. The reversal of 129701099 is 990107921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 129701099 - 2⁸ = 129700843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129701093) 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, 5895494 + ... + 5895515.

It is an arithmetic number, because the mean of its divisors is an integer number (35373030).

Almost surely, 2^129701099 is an apocalyptic number.

129701099 is a deficient number, since it is larger than the sum of its proper divisors (11791021).

129701099 is a wasteful number, since it uses less digits than its factorization.

129701099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11791020.

The product of its (nonzero) digits is 10206, while the sum is 38.

The square root of 129701099 is about 11388.6390319476. The cubic root of 129701099 is about 506.1911547921.

The spelling of 129701099 in words is "one hundred twenty-nine million, seven hundred one thousand, ninety-nine".