215453323 has 2 divisors, whose sum is σ = 215453324. Its totient is φ = 215453322.

The previous prime is 215453297. The next prime is 215453333. The reversal of 215453323 is 323354512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215453323 - 2²⁵ = 181898891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215453291 and 215453300.

It is not a weakly prime, because it can be changed into another prime (215453333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107726661 + 107726662.

It is an arithmetic number, because the mean of its divisors is an integer number (107726662).

Almost surely, 2^215453323 is an apocalyptic number.

215453323 is a deficient number, since it is larger than the sum of its proper divisors (1).

215453323 is an equidigital number, since it uses as much as digits as its factorization.

215453323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 28.

The square root of 215453323 is about 14678.3283448763. The cubic root of 215453323 is about 599.4933899568.

The spelling of 215453323 in words is "two hundred fifteen million, four hundred fifty-three thousand, three hundred twenty-three".