210402113 has 4 divisors (see below), whose sum is σ = 212008368. Its totient is φ = 208795860.

The previous prime is 210402109. The next prime is 210402121. The reversal of 210402113 is 311204012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210402113 - 2² = 210402109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (210402173) 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, 802931 + ... + 803192.

It is an arithmetic number, because the mean of its divisors is an integer number (53002092).

Almost surely, 2^210402113 is an apocalyptic number.

It is an amenable number.

210402113 is a deficient number, since it is larger than the sum of its proper divisors (1606255).

210402113 is a wasteful number, since it uses less digits than its factorization.

210402113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606254.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 210402113 is about 14505.2443274838. The cubic root of 210402113 is about 594.7713388241.

Adding to 210402113 its reverse (311204012), we get a palindrome (521606125).

The spelling of 210402113 in words is "two hundred ten million, four hundred two thousand, one hundred thirteen".