215007245 has 16 divisors (see below), whose sum is σ = 273544128. Its totient is φ = 161675520.

The previous prime is 215007217. The next prime is 215007253. The reversal of 215007245 is 542700512.

It is not a de Polignac number, because 215007245 - 2¹⁰ = 215006221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99830 + ... + 101960.

It is an arithmetic number, because the mean of its divisors is an integer number (17096508).

Almost surely, 2^215007245 is an apocalyptic number.

It is an amenable number.

215007245 is a deficient number, since it is larger than the sum of its proper divisors (58536883).

215007245 is a wasteful number, since it uses less digits than its factorization.

215007245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 215007245 is about 14663.1253489834. The cubic root of 215007245 is about 599.0793705322.

Adding to 215007245 its reverse (542700512), we get a palindrome (757707757).

The spelling of 215007245 in words is "two hundred fifteen million, seven thousand, two hundred forty-five".