216045453 has 32 divisors (see below), whose sum is σ = 318729600. Its totient is φ = 129355776.

The previous prime is 216045449. The next prime is 216045457. The reversal of 216045453 is 354540612.

216045453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216045449) and next prime (216045457).

It is not a de Polignac number, because 216045453 - 2² = 216045449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 216045453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216045457) 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, 232093 + ... + 233021.

It is an arithmetic number, because the mean of its divisors is an integer number (9960300).

Almost surely, 2^216045453 is an apocalyptic number.

It is an amenable number.

216045453 is a deficient number, since it is larger than the sum of its proper divisors (102684147).

216045453 is a wasteful number, since it uses less digits than its factorization.

216045453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 216045453 is about 14698.4847178204. The cubic root of 216045453 is about 600.0420831594.

The spelling of 216045453 in words is "two hundred sixteen million, forty-five thousand, four hundred fifty-three".