452185537 has 2 divisors, whose sum is σ = 452185538. Its totient is φ = 452185536.

The previous prime is 452185523. The next prime is 452185583. The reversal of 452185537 is 735581254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396965776 + 55219761 = 19924^2 + 7431^2 .

It is a cyclic number.

It is not a de Polignac number, because 452185537 - 2¹⁵ = 452152769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 452185537.

It is not a weakly prime, because it can be changed into another prime (452185507) 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 as a sum of consecutive naturals, namely, 226092768 + 226092769.

It is an arithmetic number, because the mean of its divisors is an integer number (226092769).

Almost surely, 2^452185537 is an apocalyptic number.

It is an amenable number.

452185537 is a deficient number, since it is larger than the sum of its proper divisors (1).

452185537 is an equidigital number, since it uses as much as digits as its factorization.

452185537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168000, while the sum is 40.

The square root of 452185537 is about 21264.6546409764. The cubic root of 452185537 is about 767.5480202106.

The spelling of 452185537 in words is "four hundred fifty-two million, one hundred eighty-five thousand, five hundred thirty-seven".