112989129 has 8 divisors (see below), whose sum is σ = 164347872. Its totient is φ = 68478240.

The previous prime is 112989109. The next prime is 112989161. The reversal of 112989129 is 921989211.

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

It is a de Polignac number, because none of the positive numbers 2^k-112989129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112989109) 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, 1711924 + ... + 1711989.

It is an arithmetic number, because the mean of its divisors is an integer number (20543484).

Almost surely, 2^112989129 is an apocalyptic number.

It is an amenable number.

112989129 is a deficient number, since it is larger than the sum of its proper divisors (51358743).

112989129 is a wasteful number, since it uses less digits than its factorization.

112989129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423927.

The product of its digits is 23328, while the sum is 42.

The square root of 112989129 is about 10629.6344716081. The cubic root of 112989129 is about 483.4433087309.

The spelling of 112989129 in words is "one hundred twelve million, nine hundred eighty-nine thousand, one hundred twenty-nine".