129086126 has 32 divisors (see below), whose sum is σ = 213528000. Its totient is φ = 58164480.

The previous prime is 129086093. The next prime is 129086137. The reversal of 129086126 is 621680921.

129086126 = 1550² + 1551² + ... + 1601².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315410 + ... + 315818.

It is an arithmetic number, because the mean of its divisors is an integer number (6672750).

Almost surely, 2^129086126 is an apocalyptic number.

129086126 is a deficient number, since it is larger than the sum of its proper divisors (84441874).

129086126 is a wasteful number, since it uses less digits than its factorization.

129086126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 129086126 is about 11361.6075447095. The cubic root of 129086126 is about 505.3898580883.

The spelling of 129086126 in words is "one hundred twenty-nine million, eighty-six thousand, one hundred twenty-six".