158591412 has 192 divisors, whose sum is σ = 497172480. Its totient is φ = 42768000.

The previous prime is 158591393. The next prime is 158591429. The reversal of 158591412 is 214195851.

158591412 is a `hidden beast` number, since 1 + 58 + 591 + 4 + 12 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1570162 + ... + 1570262.

It is an arithmetic number, because the mean of its divisors is an integer number (2589440).

Almost surely, 2^158591412 is an apocalyptic number.

158591412 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 158591412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248586240).

158591412 is an abundant number, since it is smaller than the sum of its proper divisors (338581068).

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

158591412 is a wasteful number, since it uses less digits than its factorization.

158591412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 211 counting only the distinct ones).

The product of its digits is 14400, while the sum is 36.

The square root of 158591412 is about 12593.3082230207. The cubic root of 158591412 is about 541.2857018374.

It can be divided in two parts, 15859 and 1412, that added together give a palindrome (17271).

The spelling of 158591412 in words is "one hundred fifty-eight million, five hundred ninety-one thousand, four hundred twelve".