158121260 has 96 divisors (see below), whose sum is σ = 376233984. Its totient is φ = 55328000.

The previous prime is 158121217. The next prime is 158121263. The reversal of 158121260 is 62121851.

158121260 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

158121260 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (158121263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 827765 + ... + 827955.

It is an arithmetic number, because the mean of its divisors is an integer number (3919104).

Almost surely, 2^158121260 is an apocalyptic number.

158121260 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 158121260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188116992).

158121260 is an abundant number, since it is smaller than the sum of its proper divisors (218112724).

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

158121260 is a wasteful number, since it uses less digits than its factorization.

158121260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 158121260 is about 12574.6276286815. The cubic root of 158121260 is about 540.7502830814.

The spelling of 158121260 in words is "one hundred fifty-eight million, one hundred twenty-one thousand, two hundred sixty".