118272129 has 12 divisors (see below), whose sum is σ = 159432624. Its totient is φ = 77982504.

The previous prime is 118272103. The next prime is 118272157. The reversal of 118272129 is 921272811.

It is not a de Polignac number, because 118272129 - 2⁷ = 118272001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118272129.

It is not an unprimeable number, because it can be changed into a prime (118272029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194544 + ... + 195150.

It is an arithmetic number, because the mean of its divisors is an integer number (13286052).

Almost surely, 2^118272129 is an apocalyptic number.

It is an amenable number.

118272129 is a deficient number, since it is larger than the sum of its proper divisors (41160495).

118272129 is an frugal number, since it uses more digits than its factorization.

118272129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324 (or 717 counting only the distinct ones).

The product of its digits is 4032, while the sum is 33.

The square root of 118272129 is about 10875.2990303715. The cubic root of 118272129 is about 490.8635736355.

The spelling of 118272129 in words is "one hundred eighteen million, two hundred seventy-two thousand, one hundred twenty-nine".