215152305 has 32 divisors (see below), whose sum is σ = 359856000. Its totient is φ = 109627392.

The previous prime is 215152303. The next prime is 215152309. The reversal of 215152305 is 503251512.

It is a happy number.

It is not a de Polignac number, because 215152305 - 2¹ = 215152303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215152303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39646 + ... + 44744.

It is an arithmetic number, because the mean of its divisors is an integer number (11245500).

Almost surely, 2^215152305 is an apocalyptic number.

It is an amenable number.

215152305 is a deficient number, since it is larger than the sum of its proper divisors (144703695).

215152305 is a wasteful number, since it uses less digits than its factorization.

215152305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5233.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 215152305 is about 14668.0709365615. The cubic root of 215152305 is about 599.2140681904.

The spelling of 215152305 in words is "two hundred fifteen million, one hundred fifty-two thousand, three hundred five".