30100158 has 48 divisors (see below), whose sum is σ = 71530992. Its totient is φ = 9072000.

The previous prime is 30100157. The next prime is 30100159. The reversal of 30100158 is 85100103.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30100157) and next prime (30100159).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 30100158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30100151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55368 + ... + 55908.

It is an arithmetic number, because the mean of its divisors is an integer number (1490229).

Almost surely, 2^30100158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30100158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35765496).

30100158 is an abundant number, since it is smaller than the sum of its proper divisors (41430834).

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

30100158 is a wasteful number, since it uses less digits than its factorization.

30100158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 30100158 is about 5486.3610891009. The cubic root of 30100158 is about 311.0686600336.

Subtracting 30100158 from its reverse (85100103), we obtain a palindrome (54999945).

The spelling of 30100158 in words is "thirty million, one hundred thousand, one hundred fifty-eight".