340545053 has 4 divisors (see below), whose sum is σ = 340960668. Its totient is φ = 340129440.

The previous prime is 340545043. The next prime is 340545067. The reversal of 340545053 is 350545043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350545043 = 101 ⋅3470743.

It can be written as a sum of positive squares in 2 ways, for example, as 67535524 + 273009529 = 8218^2 + 16523^2 .

It is a cyclic number.

It is not a de Polignac number, because 340545053 - 2⁶ = 340544989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340545043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206576 + ... + 208217.

It is an arithmetic number, because the mean of its divisors is an integer number (85240167).

Almost surely, 2^340545053 is an apocalyptic number.

It is an amenable number.

340545053 is a deficient number, since it is larger than the sum of its proper divisors (415615).

340545053 is an equidigital number, since it uses as much as digits as its factorization.

340545053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415614.

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 340545053 is about 18453.8628205587. The cubic root of 340545053 is about 698.3259678132.

The spelling of 340545053 in words is "three hundred forty million, five hundred forty-five thousand, fifty-three".