361640215 has 8 divisors (see below), whose sum is σ = 435915648. Its totient is φ = 288013920.

The previous prime is 361640177. The next prime is 361640219. The reversal of 361640215 is 512046163.

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

It is not a de Polignac number, because 361640215 - 2¹⁵ = 361607447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361640219) 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, 161056 + ... + 163285.

It is an arithmetic number, because the mean of its divisors is an integer number (54489456).

Almost surely, 2^361640215 is an apocalyptic number.

361640215 is a deficient number, since it is larger than the sum of its proper divisors (74275433).

361640215 is a wasteful number, since it uses less digits than its factorization.

361640215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324569.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 361640215 is about 19016.8403001130. The cubic root of 361640215 is about 712.4574075288.

Adding to 361640215 its reverse (512046163), we get a palindrome (873686378).

The spelling of 361640215 in words is "three hundred sixty-one million, six hundred forty thousand, two hundred fifteen".