215052453 has 36 divisors (see below), whose sum is σ = 390228384. Its totient is φ = 111711600.

The previous prime is 215052451. The next prime is 215052493. The reversal of 215052453 is 354250512.

It is a happy number.

It is not a de Polignac number, because 215052453 - 2¹ = 215052451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215052451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6483 + ... + 21728.

Almost surely, 2^215052453 is an apocalyptic number.

It is an amenable number.

215052453 is a deficient number, since it is larger than the sum of its proper divisors (175175931).

215052453 is a wasteful number, since it uses less digits than its factorization.

215052453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28246 (or 28232 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 215052453 is about 14664.6668219909. Note that the first 3 decimals coincide. The cubic root of 215052453 is about 599.1213556014.

The spelling of 215052453 in words is "two hundred fifteen million, fifty-two thousand, four hundred fifty-three".