129261083 has 8 divisors (see below), whose sum is σ = 148669152. Its totient is φ = 110088576.

The previous prime is 129261071. The next prime is 129261107. The reversal of 129261083 is 380162921.

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 129261083 - 2²⁶ = 62152219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129261383) 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, 57710 + ... + 59907.

It is an arithmetic number, because the mean of its divisors is an integer number (18583644).

Almost surely, 2^129261083 is an apocalyptic number.

129261083 is a deficient number, since it is larger than the sum of its proper divisors (19408069).

129261083 is a wasteful number, since it uses less digits than its factorization.

129261083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117781.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 129261083 is about 11369.3044202361. The cubic root of 129261083 is about 505.6180818818.

The spelling of 129261083 in words is "one hundred twenty-nine million, two hundred sixty-one thousand, eighty-three".