1321541354 has 32 divisors (see below), whose sum is σ = 2308608000. Its totient is φ = 555637680.

The previous prime is 1321541329. The next prime is 1321541357. The reversal of 1321541354 is 4531451231.

It is not an unprimeable number, because it can be changed into a prime (1321541357) 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 15 ways as a sum of consecutive naturals, for example, 493439 + ... + 496109.

It is an arithmetic number, because the mean of its divisors is an integer number (72144000).

Almost surely, 2^1321541354 is an apocalyptic number.

1321541354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1321541354 is a deficient number, since it is larger than the sum of its proper divisors (987066646).

1321541354 is a wasteful number, since it uses less digits than its factorization.

1321541354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338.

The product of its digits is 7200, while the sum is 29.

The square root of 1321541354 is about 36353.0102467457. The cubic root of 1321541354 is about 1097.3881155412.

Adding to 1321541354 its reverse (4531451231), we get a palindrome (5852992585).

The spelling of 1321541354 in words is "one billion, three hundred twenty-one million, five hundred forty-one thousand, three hundred fifty-four".