190309752313 has 2 divisors, whose sum is σ = 190309752314. Its totient is φ = 190309752312.

The previous prime is 190309752263. The next prime is 190309752319. The reversal of 190309752313 is 313257903091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184510625209 + 5799127104 = 429547^2 + 76152^2 .

It is a cyclic number.

It is not a de Polignac number, because 190309752313 - 2¹⁷ = 190309621241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190309752313.

It is not a weakly prime, because it can be changed into another prime (190309752319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95154876156 + 95154876157.

It is an arithmetic number, because the mean of its divisors is an integer number (95154876157).

Almost surely, 2^190309752313 is an apocalyptic number.

It is an amenable number.

190309752313 is a deficient number, since it is larger than the sum of its proper divisors (1).

190309752313 is an equidigital number, since it uses as much as digits as its factorization.

190309752313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153090, while the sum is 43.

The spelling of 190309752313 in words is "one hundred ninety billion, three hundred nine million, seven hundred fifty-two thousand, three hundred thirteen".