63129343 has 16 divisors (see below), whose sum is σ = 68250240. Its totient is φ = 58212000.

The previous prime is 63129337. The next prime is 63129359. The reversal of 63129343 is 34392136.

It is a cyclic number.

It is not a de Polignac number, because 63129343 - 2²⁵ = 29574911 is a prime.

It is a super-2 number, since 2×63129343² = 7970627895223298, 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 (63129383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128328 + ... + 128818.

It is an arithmetic number, because the mean of its divisors is an integer number (4265640).

Almost surely, 2^63129343 is an apocalyptic number.

63129343 is a deficient number, since it is larger than the sum of its proper divisors (5120897).

63129343 is a wasteful number, since it uses less digits than its factorization.

63129343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678.

The product of its digits is 11664, while the sum is 31.

The square root of 63129343 is about 7945.3975986102. The cubic root of 63129343 is about 398.1778432159.

The spelling of 63129343 in words is "sixty-three million, one hundred twenty-nine thousand, three hundred forty-three".