545340259 has 2 divisors, whose sum is σ = 545340260. Its totient is φ = 545340258.

The previous prime is 545340253. The next prime is 545340277. The reversal of 545340259 is 952043545.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545340259 is a prime.

It is not a weakly prime, because it can be changed into another prime (545340253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272670129 + 272670130.

It is an arithmetic number, because the mean of its divisors is an integer number (272670130).

Almost surely, 2^545340259 is an apocalyptic number.

545340259 is a deficient number, since it is larger than the sum of its proper divisors (1).

545340259 is an equidigital number, since it uses as much as digits as its factorization.

545340259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 545340259 is about 23352.5214698542. The cubic root of 545340259 is about 817.0008719236. Note that the first 3 decimals are identical.

The spelling of 545340259 in words is "five hundred forty-five million, three hundred forty thousand, two hundred fifty-nine".