1354521331 has 4 divisors (see below), whose sum is σ = 1356998152. Its totient is φ = 1352044512.

The previous prime is 1354521323. The next prime is 1354521353. The reversal of 1354521331 is 1331254531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1354521331 - 2³ = 1354521323 is a prime.

It is a super-2 number, since 2×1354521331² = 3669456072268023122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1354521331.

It is not an unprimeable number, because it can be changed into a prime (1354521391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1237590 + ... + 1238683.

It is an arithmetic number, because the mean of its divisors is an integer number (339249538).

Almost surely, 2^1354521331 is an apocalyptic number.

1354521331 is a deficient number, since it is larger than the sum of its proper divisors (2476821).

1354521331 is an equidigital number, since it uses as much as digits as its factorization.

1354521331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476820.

The product of its digits is 5400, while the sum is 28.

The square root of 1354521331 is about 36803.8222335670. The cubic root of 1354521331 is about 1106.4419062691.

Adding to 1354521331 its reverse (1331254531), we get a palindrome (2685775862).

The spelling of 1354521331 in words is "one billion, three hundred fifty-four million, five hundred twenty-one thousand, three hundred thirty-one".