100019136 has 56 divisors (see below), whose sum is σ = 302442880. Its totient is φ = 28576512.

The previous prime is 100019119. The next prime is 100019137. The reversal of 100019136 is 631910001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100019137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35866 + ... + 38553.

Almost surely, 2^100019136 is an apocalyptic number.

100019136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

100019136 is an abundant number, since it is smaller than the sum of its proper divisors (202423744).

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

100019136 is an equidigital number, since it uses as much as digits as its factorization.

100019136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74441 (or 74431 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 100019136 is about 10000.9567542311. The cubic root of 100019136 is about 464.1884886209.

Adding to 100019136 its reverse (631910001), we get a palindrome (731929137).

The spelling of 100019136 in words is "one hundred million, nineteen thousand, one hundred thirty-six".