43130129 has 16 divisors (see below), whose sum is σ = 52101120. Its totient is φ = 34903440.

The previous prime is 43130107. The next prime is 43130137. The reversal of 43130129 is 92103134.

It is a cyclic number.

It is not a de Polignac number, because 43130129 - 2²⁴ = 26352913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43130149) 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, 11024 + ... + 14414.

It is an arithmetic number, because the mean of its divisors is an integer number (3256320).

Almost surely, 2^43130129 is an apocalyptic number.

It is an amenable number.

43130129 is a deficient number, since it is larger than the sum of its proper divisors (8970991).

43130129 is a wasteful number, since it uses less digits than its factorization.

43130129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 43130129 is about 6567.3532720572. The cubic root of 43130129 is about 350.6928560962.

The spelling of 43130129 in words is "forty-three million, one hundred thirty thousand, one hundred twenty-nine".