129934455 has 16 divisors (see below), whose sum is σ = 237594624. Its totient is φ = 59398560.

The previous prime is 129934411. The next prime is 129934459. The reversal of 129934455 is 554439921.

It is not a de Polignac number, because 129934455 - 2⁹ = 129933943 is a prime.

It is a super-2 number, since 2×129934455² = 33765925192294050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129934459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618631 + ... + 618840.

It is an arithmetic number, because the mean of its divisors is an integer number (14849664).

Almost surely, 2^129934455 is an apocalyptic number.

129934455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

129934455 is a deficient number, since it is larger than the sum of its proper divisors (107660169).

129934455 is a wasteful number, since it uses less digits than its factorization.

129934455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237486.

The product of its digits is 194400, while the sum is 42.

The square root of 129934455 is about 11398.8795502014. The cubic root of 129934455 is about 506.4945497345.

The spelling of 129934455 in words is "one hundred twenty-nine million, nine hundred thirty-four thousand, four hundred fifty-five".