190523520100 has 27 divisors (see below), whose sum is σ = 413445510667. Its totient is φ = 76207662080.

The previous prime is 190523520071. The next prime is 190523520137. The reversal of 190523520100 is 1025325091.

The square root of 190523520100 is 436490.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3837306916 + 186686213184 = 61946^2 + 432072^2 .

It is a super-2 number, since 2×190523520100² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4343076 + ... + 4386724.

Almost surely, 2^190523520100 is an apocalyptic number.

190523520100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190523520100 is the 436490-th square number.

It is an amenable number.

190523520100 is an abundant number, since it is smaller than the sum of its proper divisors (222921990567).

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

190523520100 is an frugal number, since it uses more digits than its factorization.

190523520100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87312 (or 43656 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

Adding to 190523520100 its reverse (1025325091), we get a palindrome (191548845191).

The spelling of 190523520100 in words is "one hundred ninety billion, five hundred twenty-three million, five hundred twenty thousand, one hundred".