100700190 has 48 divisors (see below), whose sum is σ = 275605200. Its totient is φ = 25439616.

The previous prime is 100700177. The next prime is 100700191. The reversal of 100700190 is 91007001.

It is a super-2 number, since 2×100700190² = 20281056532072200, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100700191) 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, 27735 + ... + 31154.

It is an arithmetic number, because the mean of its divisors is an integer number (5741775).

Almost surely, 2^100700190 is an apocalyptic number.

100700190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100700190 is an abundant number, since it is smaller than the sum of its proper divisors (174905010).

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

100700190 is a wasteful number, since it uses less digits than its factorization.

100700190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58921 (or 58918 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 18.

The square root of 100700190 is about 10034.9484303608. The cubic root of 100700190 is about 465.2396960537.

Adding to 100700190 its reverse (91007001), we get a palindrome (191707191).

The spelling of 100700190 in words is "one hundred million, seven hundred thousand, one hundred ninety".