545315237 has 2 divisors, whose sum is σ = 545315238. Its totient is φ = 545315236.

The previous prime is 545315233. The next prime is 545315263. The reversal of 545315237 is 732513545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 539679361 + 5635876 = 23231^2 + 2374^2 .

It is a cyclic number.

It is not a de Polignac number, because 545315237 - 2² = 545315233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545315197 and 545315206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545315233) 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 as a sum of consecutive naturals, namely, 272657618 + 272657619.

It is an arithmetic number, because the mean of its divisors is an integer number (272657619).

Almost surely, 2^545315237 is an apocalyptic number.

It is an amenable number.

545315237 is a deficient number, since it is larger than the sum of its proper divisors (1).

545315237 is an equidigital number, since it uses as much as digits as its factorization.

545315237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63000, while the sum is 35.

The square root of 545315237 is about 23351.9857185636. The cubic root of 545315237 is about 816.9883761724.

The spelling of 545315237 in words is "five hundred forty-five million, three hundred fifteen thousand, two hundred thirty-seven".