1912590349 has 2 divisors, whose sum is σ = 1912590350. Its totient is φ = 1912590348.

The previous prime is 1912590319. The next prime is 1912590371. The reversal of 1912590349 is 9430952191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1908117124 + 4473225 = 43682^2 + 2115^2 .

It is an emirp because it is prime and its reverse (9430952191) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1912590349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1912590319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956295174 + 956295175.

It is an arithmetic number, because the mean of its divisors is an integer number (956295175).

Almost surely, 2^1912590349 is an apocalyptic number.

It is an amenable number.

1912590349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1912590349 is an equidigital number, since it uses as much as digits as its factorization.

1912590349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 1912590349 is about 43733.1721808515. The cubic root of 1912590349 is about 1241.2920864442.

The spelling of 1912590349 in words is "one billion, nine hundred twelve million, five hundred ninety thousand, three hundred forty-nine".