3128540129 has 8 divisors (see below), whose sum is σ = 3675487872. Its totient is φ = 2625348240.

The previous prime is 3128540117. The next prime is 3128540147. The reversal of 3128540129 is 9210458213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3128540129 - 2⁴ = 3128540113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3128540189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10938809 + ... + 10939094.

It is an arithmetic number, because the mean of its divisors is an integer number (459435984).

Almost surely, 2^3128540129 is an apocalyptic number.

It is an amenable number.

3128540129 is a deficient number, since it is larger than the sum of its proper divisors (546947743).

3128540129 is a wasteful number, since it uses less digits than its factorization.

3128540129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21877927.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 3128540129 is about 55933.3543514065. The cubic root of 3128540129 is about 1462.5607354328.

The spelling of 3128540129 in words is "three billion, one hundred twenty-eight million, five hundred forty thousand, one hundred twenty-nine".