2140538129 has 8 divisors (see below), whose sum is σ = 2179985472. Its totient is φ = 2101231440.

The previous prime is 2140538123. The next prime is 2140538161. The reversal of 2140538129 is 9218350412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2140538129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140538123) 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, 4199 + ... + 65564.

It is an arithmetic number, because the mean of its divisors is an integer number (272498184).

Almost surely, 2^2140538129 is an apocalyptic number.

It is an amenable number.

2140538129 is a deficient number, since it is larger than the sum of its proper divisors (39447343).

2140538129 is an equidigital number, since it uses as much as digits as its factorization.

2140538129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70327.

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

The square root of 2140538129 is about 46265.9499956501. The cubic root of 2140538129 is about 1288.7667497885.

The spelling of 2140538129 in words is "two billion, one hundred forty million, five hundred thirty-eight thousand, one hundred twenty-nine".