452021245 has 16 divisors (see below), whose sum is σ = 618513840. Its totient is φ = 314164224.

The previous prime is 452021239. The next prime is 452021281. The reversal of 452021245 is 542120254.

It can be written as a sum of positive squares in 8 ways, for example, as 18507204 + 433514041 = 4302^2 + 20821^2 .

It is a cyclic number.

It is not a de Polignac number, because 452021245 - 2⁹ = 452020733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203430 + ... + 205639.

It is an arithmetic number, because the mean of its divisors is an integer number (38657115).

Almost surely, 2^452021245 is an apocalyptic number.

It is an amenable number.

452021245 is a deficient number, since it is larger than the sum of its proper divisors (166492595).

452021245 is a wasteful number, since it uses less digits than its factorization.

452021245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409104.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 452021245 is about 21260.7912599696. The cubic root of 452021245 is about 767.4550515327.

Adding to 452021245 its reverse (542120254), we get a palindrome (994141499).

Subtracting 452021245 from its reverse (542120254), we obtain a palindrome (90099009).

The spelling of 452021245 in words is "four hundred fifty-two million, twenty-one thousand, two hundred forty-five".