118143129 has 16 divisors (see below), whose sum is σ = 175492800. Its totient is φ = 70195776.

The previous prime is 118143119. The next prime is 118143133. The reversal of 118143129 is 921341811.

It is not a de Polignac number, because 118143129 - 2⁵ = 118143097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118143096 and 118143105.

It is not an unprimeable number, because it can be changed into a prime (118143119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51099 + ... + 53360.

It is an arithmetic number, because the mean of its divisors is an integer number (10968300).

Almost surely, 2^118143129 is an apocalyptic number.

It is an amenable number.

118143129 is a deficient number, since it is larger than the sum of its proper divisors (57349671).

118143129 is a wasteful number, since it uses less digits than its factorization.

118143129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104504.

The product of its digits is 1728, while the sum is 30.

The square root of 118143129 is about 10869.3665408799. The cubic root of 118143129 is about 490.6850462649.

The spelling of 118143129 in words is "one hundred eighteen million, one hundred forty-three thousand, one hundred twenty-nine".