1374649 has 4 divisors (see below), whose sum is σ = 1378420. Its totient is φ = 1370880.

The previous prime is 1374619. The next prime is 1374673. The reversal of 1374649 is 9464731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9464731 = 523 ⋅18097.

It can be written as a sum of positive squares in 2 ways, for example, as 1155625 + 219024 = 1075^2 + 468^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374649 - 2⁵ = 1374617 is a prime.

It is a Duffinian number.

1374649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1374619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272 + ... + 2089.

It is an arithmetic number, because the mean of its divisors is an integer number (344605).

2^1374649 is an apocalyptic number.

It is an amenable number.

1374649 is a deficient number, since it is larger than the sum of its proper divisors (3771).

1374649 is an equidigital number, since it uses as much as digits as its factorization.

1374649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770.

The product of its digits is 18144, while the sum is 34.

The square root of 1374649 is about 1172.4542635003. The cubic root of 1374649 is about 111.1895416988.

The spelling of 1374649 in words is "one million, three hundred seventy-four thousand, six hundred forty-nine".