215340207 has 16 divisors (see below), whose sum is σ = 304312320. Its totient is φ = 134980992.

The previous prime is 215340197. The next prime is 215340233. The reversal of 215340207 is 702043512.

It is not a de Polignac number, because 215340207 - 2¹² = 215336111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215340247) 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 in 15 ways as a sum of consecutive naturals, for example, 83544 + ... + 86082.

It is an arithmetic number, because the mean of its divisors is an integer number (19019520).

Almost surely, 2^215340207 is an apocalyptic number.

215340207 is a deficient number, since it is larger than the sum of its proper divisors (88972113).

215340207 is a wasteful number, since it uses less digits than its factorization.

215340207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4222.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 215340207 is about 14674.4746754356. The cubic root of 215340207 is about 599.3884574602.

Adding to 215340207 its reverse (702043512), we get a palindrome (917383719).

The spelling of 215340207 in words is "two hundred fifteen million, three hundred forty thousand, two hundred seven".