190780049 has 2 divisors, whose sum is σ = 190780050. Its totient is φ = 190780048.

The previous prime is 190780043. The next prime is 190780087. The reversal of 190780049 is 940087091.

190780049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (190780087) can be obtained adding 190780049 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110355025 + 80425024 = 10505^2 + 8968^2 .

It is a cyclic number.

It is not a de Polignac number, because 190780049 - 2⁴ = 190780033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190779994 and 190780021.

It is not a weakly prime, because it can be changed into another prime (190780043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95390024 + 95390025.

It is an arithmetic number, because the mean of its divisors is an integer number (95390025).

Almost surely, 2^190780049 is an apocalyptic number.

It is an amenable number.

190780049 is a deficient number, since it is larger than the sum of its proper divisors (1).

190780049 is an equidigital number, since it uses as much as digits as its factorization.

190780049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 190780049 is about 13812.3151209347. The cubic root of 190780049 is about 575.6753742830.

The spelling of 190780049 in words is "one hundred ninety million, seven hundred eighty thousand, forty-nine".