158100000 has 288 divisors, whose sum is σ = 566963712. Its totient is φ = 38400000.

The previous prime is 158099993. The next prime is 158100011. The reversal of 158100000 is 1851.

It is a happy number.

It is a super-2 number, since 2×158100000² = 49991220000000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5099985 + ... + 5100015.

It is an arithmetic number, because the mean of its divisors is an integer number (1968624).

Almost surely, 2^158100000 is an apocalyptic number.

158100000 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 158100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283481856).

158100000 is an abundant number, since it is smaller than the sum of its proper divisors (408863712).

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

158100000 is an equidigital number, since it uses as much as digits as its factorization.

158100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 158100000 is about 12573.7822471999. The cubic root of 158100000 is about 540.7260466899.

Adding to 158100000 its reverse (1851), we get a palindrome (158101851).

The spelling of 158100000 in words is "one hundred fifty-eight million, one hundred thousand".