190312243205 has 32 divisors (see below), whose sum is σ = 271050589440. Its totient is φ = 125509386240.

The previous prime is 190312243193. The next prime is 190312243237. The reversal of 190312243205 is 502342213091.

It is not a de Polignac number, because 190312243205 - 2⁶ = 190312243141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103931 + ... + 625640.

It is an arithmetic number, because the mean of its divisors is an integer number (8470330920).

Almost surely, 2^190312243205 is an apocalyptic number.

It is an amenable number.

190312243205 is a deficient number, since it is larger than the sum of its proper divisors (80738346235).

190312243205 is a wasteful number, since it uses less digits than its factorization.

190312243205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729869.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 190312243205 its reverse (502342213091), we get a palindrome (692654456296).

The spelling of 190312243205 in words is "one hundred ninety billion, three hundred twelve million, two hundred forty-three thousand, two hundred five".