190306292985 has 24 divisors (see below), whose sum is σ = 341238872520. Its totient is φ = 97996803072.

The previous prime is 190306292947. The next prime is 190306292989. The reversal of 190306292985 is 589292603091.

It is a happy number.

190306292985 is a `hidden beast` number, since 1 + 9 + 0 + 3 + 0 + 629 + 2 + 9 + 8 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 830650041 + 189475642944 = 28821^2 + 435288^2 .

It is not a de Polignac number, because 190306292985 - 2⁶ = 190306292921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190306292989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72912984 + ... + 72915593.

It is an arithmetic number, because the mean of its divisors is an integer number (14218286355).

Almost surely, 2^190306292985 is an apocalyptic number.

190306292985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190306292985 is a deficient number, since it is larger than the sum of its proper divisors (150932579535).

190306292985 is a wasteful number, since it uses less digits than its factorization.

190306292985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145828617 (or 145828614 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 190306292985 in words is "one hundred ninety billion, three hundred six million, two hundred ninety-two thousand, nine hundred eighty-five".