1914137149 has 2 divisors, whose sum is σ = 1914137150. Its totient is φ = 1914137148.

The previous prime is 1914137143. The next prime is 1914137167. The reversal of 1914137149 is 9417314191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1852011225 + 62125924 = 43035^2 + 7882^2 .

It is a cyclic number.

It is not a de Polignac number, because 1914137149 - 2²³ = 1905748541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1914137143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957068574 + 957068575.

It is an arithmetic number, because the mean of its divisors is an integer number (957068575).

Almost surely, 2^1914137149 is an apocalyptic number.

It is an amenable number.

1914137149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1914137149 is an equidigital number, since it uses as much as digits as its factorization.

1914137149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 40.

The square root of 1914137149 is about 43750.8531231106. The cubic root of 1914137149 is about 1241.6266263222.

The spelling of 1914137149 in words is "one billion, nine hundred fourteen million, one hundred thirty-seven thousand, one hundred forty-nine".