340312545 has 48 divisors (see below), whose sum is σ = 626447952. Its totient is φ = 170311680.

The previous prime is 340312543. The next prime is 340312559. The reversal of 340312545 is 545213043.

340312545 is a `hidden beast` number, since 3 + 403 + 1 + 254 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 7177041 + 333135504 = 2679^2 + 18252^2 .

It is not a de Polignac number, because 340312545 - 2¹ = 340312543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340312543) 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 in 47 ways as a sum of consecutive naturals, for example, 505329 + ... + 506001.

It is an arithmetic number, because the mean of its divisors is an integer number (13050999).

Almost surely, 2^340312545 is an apocalyptic number.

It is an amenable number.

340312545 is a deficient number, since it is larger than the sum of its proper divisors (286135407).

340312545 is a wasteful number, since it uses less digits than its factorization.

340312545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 340312545 is about 18447.5620340467. The cubic root of 340312545 is about 698.1670036872.

Adding to 340312545 its reverse (545213043), we get a palindrome (885525588).

It can be divided in two parts, 3403125 and 45, that multiplied together give a square (153140625 = 12375²).

The spelling of 340312545 in words is "three hundred forty million, three hundred twelve thousand, five hundred forty-five".