190020529 has 4 divisors (see below), whose sum is σ = 193605876. Its totient is φ = 186435184.

The previous prime is 190020521. The next prime is 190020563. The reversal of 190020529 is 925020091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 925020091 = 37 ⋅25000543.

It can be written as a sum of positive squares in 2 ways, for example, as 97476129 + 92544400 = 9873^2 + 9620^2 .

It is a cyclic number.

It is not a de Polignac number, because 190020529 - 2³ = 190020521 is a prime.

It is a super-2 number, since 2×190020529² = 72215602882879682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190020497 and 190020506.

It is not an unprimeable number, because it can be changed into a prime (190020521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1792594 + ... + 1792699.

It is an arithmetic number, because the mean of its divisors is an integer number (48401469).

Almost surely, 2^190020529 is an apocalyptic number.

It is an amenable number.

190020529 is a deficient number, since it is larger than the sum of its proper divisors (3585347).

190020529 is an equidigital number, since it uses as much as digits as its factorization.

190020529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3585346.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 190020529 is about 13784.7933970735. The cubic root of 190020529 is about 574.9104122555.

The spelling of 190020529 in words is "one hundred ninety million, twenty thousand, five hundred twenty-nine".