1912349 has 4 divisors (see below), whose sum is σ = 1917564. Its totient is φ = 1907136.

The previous prime is 1912307. The next prime is 1912357. The reversal of 1912349 is 9432191.

It is a happy number.

1912349 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 669124 + 1243225 = 818^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 1912349 - 2⁸ = 1912093 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 (1912949) 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, 2012 + ... + 2805.

It is an arithmetic number, because the mean of its divisors is an integer number (479391).

2^1912349 is an apocalyptic number.

It is an amenable number.

1912349 is a deficient number, since it is larger than the sum of its proper divisors (5215).

1912349 is an equidigital number, since it uses as much as digits as its factorization.

1912349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5214.

The product of its digits is 1944, while the sum is 29.

The square root of 1912349 is about 1382.8770733511. The cubic root of 1912349 is about 124.1239871533.

The spelling of 1912349 in words is "one million, nine hundred twelve thousand, three hundred forty-nine".