340475503 has 2 divisors, whose sum is σ = 340475504. Its totient is φ = 340475502.

The previous prime is 340475501. The next prime is 340475549. The reversal of 340475503 is 305574043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340475503 - 2¹ = 340475501 is a prime.

It is a super-3 number, since 3×340475503³ (a number of 27 digits) contains 333 as substring.

Together with 340475501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340475501) 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, 170237751 + 170237752.

It is an arithmetic number, because the mean of its divisors is an integer number (170237752).

Almost surely, 2^340475503 is an apocalyptic number.

340475503 is a deficient number, since it is larger than the sum of its proper divisors (1).

340475503 is an equidigital number, since it uses as much as digits as its factorization.

340475503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 340475503 is about 18451.9782950230. The cubic root of 340475503 is about 698.2784245416.

The spelling of 340475503 in words is "three hundred forty million, four hundred seventy-five thousand, five hundred three".