1543252223 has 2 divisors, whose sum is σ = 1543252224. Its totient is φ = 1543252222.

The previous prime is 1543252213. The next prime is 1543252279. The reversal of 1543252223 is 3222523451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1543252223 - 2⁶ = 1543252159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1543252213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771626111 + 771626112.

It is an arithmetic number, because the mean of its divisors is an integer number (771626112).

Almost surely, 2^1543252223 is an apocalyptic number.

1543252223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1543252223 is an equidigital number, since it uses as much as digits as its factorization.

1543252223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 29.

The square root of 1543252223 is about 39284.2490446235. The cubic root of 1543252223 is about 1155.6126939226.

Adding to 1543252223 its reverse (3222523451), we get a palindrome (4765775674).

The spelling of 1543252223 in words is "one billion, five hundred forty-three million, two hundred fifty-two thousand, two hundred twenty-three".