1912495349 has 4 divisors (see below), whose sum is σ = 1921559520. Its totient is φ = 1903431180.

The previous prime is 1912495337. The next prime is 1912495357. The reversal of 1912495349 is 9435942191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1912495349 - 2¹² = 1912491253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912485349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4531769 + ... + 4532190.

It is an arithmetic number, because the mean of its divisors is an integer number (480389880).

Almost surely, 2^1912495349 is an apocalyptic number.

It is an amenable number.

1912495349 is a deficient number, since it is larger than the sum of its proper divisors (9064171).

1912495349 is an equidigital number, since it uses as much as digits as its factorization.

1912495349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9064170.

The product of its digits is 349920, while the sum is 47.

The square root of 1912495349 is about 43732.0860353128. The cubic root of 1912495349 is about 1241.2715340904.

The spelling of 1912495349 in words is "one billion, nine hundred twelve million, four hundred ninety-five thousand, three hundred forty-nine".