158591420 has 48 divisors (see below), whose sum is σ = 363031200. Its totient is φ = 57843456.

The previous prime is 158591393. The next prime is 158591429. The reversal of 158591420 is 24195851.

158591420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158591429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17906 + ... + 25254.

It is an arithmetic number, because the mean of its divisors is an integer number (7563150).

Almost surely, 2^158591420 is an apocalyptic number.

158591420 is a gapful number since it is divisible by the number (10) 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 158591420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181515600).

158591420 is an abundant number, since it is smaller than the sum of its proper divisors (204439780).

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

158591420 is a wasteful number, since it uses less digits than its factorization.

158591420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7454 (or 7452 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 158591420 is about 12593.3085406497. The cubic root of 158591420 is about 541.2857109390.

The spelling of 158591420 in words is "one hundred fifty-eight million, five hundred ninety-one thousand, four hundred twenty".