1914749 has 4 divisors (see below), whose sum is σ = 1918080. Its totient is φ = 1911420.

The previous prime is 1914743. The next prime is 1914751. The reversal of 1914749 is 9474191.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9474191 = 199 ⋅47609.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1914749 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914743) 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, 557 + ... + 2034.

It is an arithmetic number, because the mean of its divisors is an integer number (479520).

2^1914749 is an apocalyptic number.

It is an amenable number.

1914749 is a deficient number, since it is larger than the sum of its proper divisors (3331).

1914749 is an equidigital number, since it uses as much as digits as its factorization.

1914749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330.

The product of its digits is 9072, while the sum is 35.

The square root of 1914749 is about 1383.7445573515. The cubic root of 1914749 is about 124.1758906910.

The spelling of 1914749 in words is "one million, nine hundred fourteen thousand, seven hundred forty-nine".