1320754 has 4 divisors (see below), whose sum is σ = 1981134. Its totient is φ = 660376.

The previous prime is 1320751. The next prime is 1320773. The reversal of 1320754 is 4570231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4570231 = 257 ⋅17783.

It can be written as a sum of positive squares in only one way, i.e., 1270129 + 50625 = 1127^2 + 225^2 .

It is a super-2 number, since 2×1320754² = 3488782257032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1320751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330187 + ... + 330190.

2^1320754 is an apocalyptic number.

1320754 is a deficient number, since it is larger than the sum of its proper divisors (660380).

1320754 is an equidigital number, since it uses as much as digits as its factorization.

1320754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660379.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 1320754 is about 1149.2406188436. The cubic root of 1320754 is about 109.7170136596.

Adding to 1320754 its reverse (4570231), we get a palindrome (5890985).

The spelling of 1320754 in words is "one million, three hundred twenty thousand, seven hundred fifty-four".