102140129 has 8 divisors (see below), whose sum is σ = 125711040. Its totient is φ = 80814096.

The previous prime is 102140123. The next prime is 102140147. The reversal of 102140129 is 921041201.

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 102140129 - 2¹² = 102136033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102140129.

It is not an unprimeable number, because it can be changed into a prime (102140123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561119 + ... + 561300.

It is an arithmetic number, because the mean of its divisors is an integer number (15713880).

Almost surely, 2^102140129 is an apocalyptic number.

It is an amenable number.

102140129 is a deficient number, since it is larger than the sum of its proper divisors (23570911).

102140129 is a wasteful number, since it uses less digits than its factorization.

102140129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122439.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 102140129 is about 10106.4399765694. The cubic root of 102140129 is about 467.4467385727.

The spelling of 102140129 in words is "one hundred two million, one hundred forty thousand, one hundred twenty-nine".