43129113 has 4 divisors (see below), whose sum is σ = 57505488. Its totient is φ = 28752740.

The previous prime is 43129109. The next prime is 43129123. The reversal of 43129113 is 31192134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43129113 - 2² = 43129109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43129103) 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, 7188183 + ... + 7188188.

It is an arithmetic number, because the mean of its divisors is an integer number (14376372).

Almost surely, 2^43129113 is an apocalyptic number.

It is an amenable number.

43129113 is a deficient number, since it is larger than the sum of its proper divisors (14376375).

43129113 is a wasteful number, since it uses less digits than its factorization.

43129113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14376374.

The product of its digits is 648, while the sum is 24.

The square root of 43129113 is about 6567.2759192834. The cubic root of 43129113 is about 350.6901023619.

The spelling of 43129113 in words is "forty-three million, one hundred twenty-nine thousand, one hundred thirteen".