178112130 has 64 divisors (see below), whose sum is σ = 495866880. Its totient is φ = 40100544.

The previous prime is 178112101. The next prime is 178112153. The reversal of 178112130 is 31211871.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 178112130.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 7741 + ... + 20399.

It is an arithmetic number, because the mean of its divisors is an integer number (7747920).

Almost surely, 2^178112130 is an apocalyptic number.

178112130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 178112130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247933440).

178112130 is an abundant number, since it is smaller than the sum of its proper divisors (317754750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

178112130 is a wasteful number, since it uses less digits than its factorization.

178112130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12743.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 178112130 is about 13345.8656519538. The cubic root of 178112130 is about 562.6407272588.

The spelling of 178112130 in words is "one hundred seventy-eight million, one hundred twelve thousand, one hundred thirty".