1930436149 has 2 divisors, whose sum is σ = 1930436150. Its totient is φ = 1930436148.

The previous prime is 1930436099. The next prime is 1930436159. The reversal of 1930436149 is 9416340391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1905933649 + 24502500 = 43657^2 + 4950^2 .

It is a cyclic number.

It is not a de Polignac number, because 1930436149 - 2¹¹ = 1930434101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1930436159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965218074 + 965218075.

It is an arithmetic number, because the mean of its divisors is an integer number (965218075).

Almost surely, 2^1930436149 is an apocalyptic number.

It is an amenable number.

1930436149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1930436149 is an equidigital number, since it uses as much as digits as its factorization.

1930436149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 1930436149 is about 43936.7289292228. The cubic root of 1930436149 is about 1245.1408471697.

The spelling of 1930436149 in words is "one billion, nine hundred thirty million, four hundred thirty-six thousand, one hundred forty-nine".