210703013 has 4 divisors (see below), whose sum is σ = 210783948. Its totient is φ = 210622080.

The previous prime is 210702979. The next prime is 210703019. The reversal of 210703013 is 310307012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160604929 + 50098084 = 12673^2 + 7078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210703013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210702982 and 210703000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210703019) 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, 36428 + ... + 41813.

It is an arithmetic number, because the mean of its divisors is an integer number (52695987).

Almost surely, 2^210703013 is an apocalyptic number.

It is an amenable number.

210703013 is a deficient number, since it is larger than the sum of its proper divisors (80935).

210703013 is an equidigital number, since it uses as much as digits as its factorization.

210703013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80934.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 210703013 is about 14515.6127325029. The cubic root of 210703013 is about 595.0547349783.

The spelling of 210703013 in words is "two hundred ten million, seven hundred three thousand, thirteen".