190000100 has 36 divisors (see below), whose sum is σ = 413960484. Its totient is φ = 75694080.

The previous prime is 190000099. The next prime is 190000103. The reversal of 190000100 is 1000091.

It can be written as a sum of positive squares in 6 ways, for example, as 1444 + 189998656 = 38^2 + 13784^2 .

It is a super-2 number, since 2×190000100² = 72200076000020000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190000103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22004 + ... + 29396.

Almost surely, 2^190000100 is an apocalyptic number.

190000100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190000100 is an abundant number, since it is smaller than the sum of its proper divisors (223960384).

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

190000100 is a wasteful number, since it uses less digits than its factorization.

190000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7664 (or 7657 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 190000100 is about 13784.0523794710. The cubic root of 190000100 is about 574.8898087523.

Adding to 190000100 its reverse (1000091), we get a palindrome (191000191).

The spelling of 190000100 in words is "one hundred ninety million, one hundred", and thus it is an aban number.