202215045 has 16 divisors (see below), whose sum is σ = 328374720. Its totient is φ = 106237824.

The previous prime is 202215023. The next prime is 202215089. The reversal of 202215045 is 540512202.

It is a happy number.

It is not a de Polignac number, because 202215045 - 2⁹ = 202214533 is a prime.

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, 99600 + ... + 101609.

It is an arithmetic number, because the mean of its divisors is an integer number (20523420).

Almost surely, 2^202215045 is an apocalyptic number.

It is an amenable number.

202215045 is a deficient number, since it is larger than the sum of its proper divisors (126159675).

202215045 is a wasteful number, since it uses less digits than its factorization.

202215045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201284.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 202215045 is about 14220.2336478695. The cubic root of 202215045 is about 586.9545696852.

Adding to 202215045 its reverse (540512202), we get a palindrome (742727247).

The spelling of 202215045 in words is "two hundred two million, two hundred fifteen thousand, forty-five".