215397345 has 8 divisors (see below), whose sum is σ = 344635776. Its totient is φ = 114878576.

The previous prime is 215397341. The next prime is 215397373. The reversal of 215397345 is 543793512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 215397345 - 2² = 215397341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215397341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7179897 + ... + 7179926.

It is an arithmetic number, because the mean of its divisors is an integer number (43079472).

Almost surely, 2^215397345 is an apocalyptic number.

It is an amenable number.

215397345 is a deficient number, since it is larger than the sum of its proper divisors (129238431).

215397345 is a wasteful number, since it uses less digits than its factorization.

215397345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14359831.

The product of its digits is 113400, while the sum is 39.

The square root of 215397345 is about 14676.4213962396. The cubic root of 215397345 is about 599.4414663394.

The spelling of 215397345 in words is "two hundred fifteen million, three hundred ninety-seven thousand, three hundred forty-five".