213402315 has 16 divisors (see below), whose sum is σ = 390221568. Its totient is φ = 97555296.

The previous prime is 213402313. The next prime is 213402337. The reversal of 213402315 is 513204312.

It is not a de Polignac number, because 213402315 - 2¹ = 213402313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 213402291 and 213402300.

It is not an unprimeable number, because it can be changed into a prime (213402313) 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 15 ways as a sum of consecutive naturals, for example, 1016097 + ... + 1016306.

It is an arithmetic number, because the mean of its divisors is an integer number (24388848).

Almost surely, 2^213402315 is an apocalyptic number.

213402315 is a deficient number, since it is larger than the sum of its proper divisors (176819253).

213402315 is a wasteful number, since it uses less digits than its factorization.

213402315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032418.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 213402315 is about 14608.2961018731. The cubic root of 213402315 is about 597.5850290107.

Adding to 213402315 its reverse (513204312), we get a palindrome (726606627).

The spelling of 213402315 in words is "two hundred thirteen million, four hundred two thousand, three hundred fifteen".