129537119 has 4 divisors (see below), whose sum is σ = 129675720. Its totient is φ = 129398520.

The previous prime is 129537103. The next prime is 129537131. The reversal of 129537119 is 911735921.

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 129537119 - 2⁴ = 129537103 is a prime.

It is a super-2 number, since 2×129537119² = 33559730397640322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129537139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67889 + ... + 69770.

It is an arithmetic number, because the mean of its divisors is an integer number (32418930).

Almost surely, 2^129537119 is an apocalyptic number.

129537119 is a deficient number, since it is larger than the sum of its proper divisors (138601).

129537119 is an equidigital number, since it uses as much as digits as its factorization.

129537119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138600.

The product of its digits is 17010, while the sum is 38.

The square root of 129537119 is about 11381.4374751171. The cubic root of 129537119 is about 505.9777404322.

The spelling of 129537119 in words is "one hundred twenty-nine million, five hundred thirty-seven thousand, one hundred nineteen".