158005100 has 54 divisors (see below), whose sum is σ = 375030684. Its totient is φ = 57304800.

The previous prime is 158005087. The next prime is 158005129. The reversal of 158005100 is 1500851.

It is a super-2 number, since 2×158005100² = 49931223252020000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 416711 + ... + 417089.

Almost surely, 2^158005100 is an apocalyptic number.

158005100 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 158005100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187515342).

158005100 is an abundant number, since it is smaller than the sum of its proper divisors (217025584).

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

158005100 is a wasteful number, since it uses less digits than its factorization.

158005100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 158005100 is about 12570.0079554470. The cubic root of 158005100 is about 540.6178342240.

Subtracting from 158005100 its product of nonzero digits (200), we obtain a square (158004900 = 12570²).

Adding to 158005100 its reverse (1500851), we get a palindrome (159505951).

The spelling of 158005100 in words is "one hundred fifty-eight million, five thousand, one hundred".