1452540321 has 24 divisors (see below), whose sum is σ = 2197742976. Its totient is φ = 922701120.

The previous prime is 1452540317. The next prime is 1452540343. The reversal of 1452540321 is 1230452541.

It is not a de Polignac number, because 1452540321 - 2² = 1452540317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1452540361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41101 + ... + 67781.

It is an arithmetic number, because the mean of its divisors is an integer number (91572624).

Almost surely, 2^1452540321 is an apocalyptic number.

It is an amenable number.

1452540321 is a deficient number, since it is larger than the sum of its proper divisors (745202655).

1452540321 is a wasteful number, since it uses less digits than its factorization.

1452540321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26973 (or 26970 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1452540321 is about 38112.2069814909. The cubic root of 1452540321 is about 1132.5117908806.

Adding to 1452540321 its reverse (1230452541), we get a palindrome (2682992862).

The spelling of 1452540321 in words is "one billion, four hundred fifty-two million, five hundred forty thousand, three hundred twenty-one".