158188212 has 144 divisors (see below), whose sum is σ = 497777280. Its totient is φ = 41243904.

The previous prime is 158188211. The next prime is 158188231. The reversal of 158188212 is 212881851.

158188212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158188211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 356863 + ... + 357305.

Almost surely, 2^158188212 is an apocalyptic number.

158188212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158188212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248888640).

158188212 is an abundant number, since it is smaller than the sum of its proper divisors (339589068).

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

158188212 is a wasteful number, since it uses less digits than its factorization.

158188212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 577 counting only the distinct ones).

The product of its digits is 10240, while the sum is 36.

The square root of 158188212 is about 12577.2895331228. The cubic root of 158188212 is about 540.8265941443.

The spelling of 158188212 in words is "one hundred fifty-eight million, one hundred eighty-eight thousand, two hundred twelve".