215158361 has 8 divisors (see below), whose sum is σ = 235462464. Its totient is φ = 194978320.

The previous prime is 215158357. The next prime is 215158379. The reversal of 215158361 is 163851512.

215158361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 215158361 - 2² = 215158357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215158331) 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, 27365 + ... + 34338.

It is an arithmetic number, because the mean of its divisors is an integer number (29432808).

Almost surely, 2^215158361 is an apocalyptic number.

It is an amenable number.

215158361 is a deficient number, since it is larger than the sum of its proper divisors (20304103).

215158361 is a wasteful number, since it uses less digits than its factorization.

215158361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62031.

The product of its digits is 7200, while the sum is 32.

The square root of 215158361 is about 14668.2773698891. The cubic root of 215158361 is about 599.2196902641.

The spelling of 215158361 in words is "two hundred fifteen million, one hundred fifty-eight thousand, three hundred sixty-one".