190000916129 has 2 divisors, whose sum is σ = 190000916130. Its totient is φ = 190000916128.

The previous prime is 190000916117. The next prime is 190000916227. The reversal of 190000916129 is 921619000091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186643872529 + 3357043600 = 432023^2 + 57940^2 .

It is a cyclic number.

It is not a de Polignac number, because 190000916129 - 2¹⁶ = 190000850593 is a prime.

It is a super-2 number, since 2×190000916129² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190000916092 and 190000916101.

It is not a weakly prime, because it can be changed into another prime (190000910129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95000458064 + 95000458065.

It is an arithmetic number, because the mean of its divisors is an integer number (95000458065).

Almost surely, 2^190000916129 is an apocalyptic number.

It is an amenable number.

190000916129 is a deficient number, since it is larger than the sum of its proper divisors (1).

190000916129 is an equidigital number, since it uses as much as digits as its factorization.

190000916129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 190000916129 in words is "one hundred ninety billion, nine hundred sixteen thousand, one hundred twenty-nine".