129084097 has 8 divisors (see below), whose sum is σ = 132096744. Its totient is φ = 126092928.

The previous prime is 129084091. The next prime is 129084107. The reversal of 129084097 is 790480921.

It can be written as a sum of positive squares in 4 ways, for example, as 50069776 + 79014321 = 7076^2 + 8889^2 .

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 129084097 - 2³ = 129084089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129084091) 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, 7123 + ... + 17575.

It is an arithmetic number, because the mean of its divisors is an integer number (16512093).

Almost surely, 2^129084097 is an apocalyptic number.

It is an amenable number.

129084097 is a deficient number, since it is larger than the sum of its proper divisors (3012647).

129084097 is a wasteful number, since it uses less digits than its factorization.

129084097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10739.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 129084097 is about 11361.5182524168. The cubic root of 129084097 is about 505.3872101368.

The spelling of 129084097 in words is "one hundred twenty-nine million, eighty-four thousand, ninety-seven".