1331354 has 4 divisors (see below), whose sum is σ = 1997034. Its totient is φ = 665676.

The previous prime is 1331347. The next prime is 1331377. The reversal of 1331354 is 4531331.

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: 4531331 = 7 ⋅647333.

It can be written as a sum of positive squares in only one way, i.e., 1261129 + 70225 = 1123^2 + 265^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332837 + ... + 332840.

2^1331354 is an apocalyptic number.

1331354 is a deficient number, since it is larger than the sum of its proper divisors (665680).

1331354 is an equidigital number, since it uses as much as digits as its factorization.

1331354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665679.

The product of its digits is 540, while the sum is 20.

The square root of 1331354 is about 1153.8431435858. The cubic root of 1331354 is about 110.0097512017.

Adding to 1331354 its reverse (4531331), we get a palindrome (5862685).

It can be divided in two parts, 1331 and 354, that multiplied together give a palindrome (471174).

The spelling of 1331354 in words is "one million, three hundred thirty-one thousand, three hundred fifty-four".