190474505 has 16 divisors (see below), whose sum is σ = 246640464. Its totient is φ = 140378880.

The previous prime is 190474499. The next prime is 190474519. The reversal of 190474505 is 505474091.

It can be written as a sum of positive squares in 8 ways, for example, as 26327161 + 164147344 = 5131^2 + 12812^2 .

It is not a de Polignac number, because 190474505 - 2⁴ = 190474489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33575 + ... + 38835.

It is an arithmetic number, because the mean of its divisors is an integer number (15415029).

Almost surely, 2^190474505 is an apocalyptic number.

It is an amenable number.

190474505 is a deficient number, since it is larger than the sum of its proper divisors (56165959).

190474505 is a wasteful number, since it uses less digits than its factorization.

190474505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5836.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 190474505 is about 13801.2501245358. The cubic root of 190474505 is about 575.3678855593.

The spelling of 190474505 in words is "one hundred ninety million, four hundred seventy-four thousand, five hundred five".