1911349 has 8 divisors (see below), whose sum is σ = 2130048. Its totient is φ = 1700160.

The previous prime is 1911347. The next prime is 1911373. The reversal of 1911349 is 9431191.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1911349 - 2¹ = 1911347 is a prime.

It is a Duffinian number.

1911349 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1911347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332 + ... + 2365.

It is an arithmetic number, because the mean of its divisors is an integer number (266256).

2^1911349 is an apocalyptic number.

It is an amenable number.

1911349 is a deficient number, since it is larger than the sum of its proper divisors (218699).

1911349 is a wasteful number, since it uses less digits than its factorization.

1911349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755.

The product of its digits is 972, while the sum is 28.

The square root of 1911349 is about 1382.5154610347. The cubic root of 1911349 is about 124.1023478624.

It can be divided in two parts, 191 and 1349, that added together give a triangular number (1540 = T₅₅).

The spelling of 1911349 in words is "one million, nine hundred eleven thousand, three hundred forty-nine".