129545119 has 4 divisors (see below), whose sum is σ = 141321960. Its totient is φ = 117768280.

The previous prime is 129545099. The next prime is 129545137. The reversal of 129545119 is 911545921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129545119 is a prime.

It is a super-2 number, since 2×129545119² = 33563875713448322, 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 (129545189) 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, 5888404 + ... + 5888425.

It is an arithmetic number, because the mean of its divisors is an integer number (35330490).

Almost surely, 2^129545119 is an apocalyptic number.

129545119 is a deficient number, since it is larger than the sum of its proper divisors (11776841).

129545119 is a wasteful number, since it uses less digits than its factorization.

129545119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11776840.

The product of its digits is 16200, while the sum is 37.

The square root of 129545119 is about 11381.7889191462. The cubic root of 129545119 is about 505.9881563362.

The spelling of 129545119 in words is "one hundred twenty-nine million, five hundred forty-five thousand, one hundred nineteen".