1452221345 has 8 divisors (see below), whose sum is σ = 1845175464. Its totient is φ = 1093437184.

The previous prime is 1452221341. The next prime is 1452221347. The reversal of 1452221345 is 5431222541.

It can be written as a sum of positive squares in 4 ways, for example, as 521300224 + 930921121 = 22832^2 + 30511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1452221345 - 2² = 1452221341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1452221341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8542394 + ... + 8542563.

It is an arithmetic number, because the mean of its divisors is an integer number (230646933).

Almost surely, 2^1452221345 is an apocalyptic number.

It is an amenable number.

1452221345 is a deficient number, since it is larger than the sum of its proper divisors (392954119).

1452221345 is a wasteful number, since it uses less digits than its factorization.

1452221345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17084979.

The product of its digits is 9600, while the sum is 29.

The square root of 1452221345 is about 38108.0220557299. The cubic root of 1452221345 is about 1132.4288854305.

Adding to 1452221345 its reverse (5431222541), we get a palindrome (6883443886).

The spelling of 1452221345 in words is "one billion, four hundred fifty-two million, two hundred twenty-one thousand, three hundred forty-five".