190250545 has 4 divisors (see below), whose sum is σ = 228300660. Its totient is φ = 152200432.

The previous prime is 190250539. The next prime is 190250563. The reversal of 190250545 is 545052091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26615281 + 163635264 = 5159^2 + 12792^2 .

It is a cyclic number.

It is not a de Polignac number, because 190250545 - 2⁵ = 190250513 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 19025050 + ... + 19025059.

It is an arithmetic number, because the mean of its divisors is an integer number (57075165).

Almost surely, 2^190250545 is an apocalyptic number.

It is an amenable number.

190250545 is a deficient number, since it is larger than the sum of its proper divisors (38050115).

190250545 is an equidigital number, since it uses as much as digits as its factorization.

190250545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38050114.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 190250545 is about 13793.1339803541. The cubic root of 190250545 is about 575.1422911873.

The spelling of 190250545 in words is "one hundred ninety million, two hundred fifty thousand, five hundred forty-five".