190137858305 has 8 divisors (see below), whose sum is σ = 229426013544. Its totient is φ = 151269897600.

The previous prime is 190137858293. The next prime is 190137858347. The reversal of 190137858305 is 503858731091.

It is a Cunningham number, because it is equal to 436048²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 190137858304 = 1^2 + 436048^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190137858305 - 2¹⁴ = 190137841921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105047636 + ... + 105049445.

It is an arithmetic number, because the mean of its divisors is an integer number (28678251693).

Almost surely, 2^190137858305 is an apocalyptic number.

It is an amenable number.

190137858305 is a deficient number, since it is larger than the sum of its proper divisors (39288155239).

190137858305 is a wasteful number, since it uses less digits than its factorization.

190137858305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210097267.

The product of its (nonzero) digits is 907200, while the sum is 50.

The spelling of 190137858305 in words is "one hundred ninety billion, one hundred thirty-seven million, eight hundred fifty-eight thousand, three hundred five".