1532212223 has 4 divisors (see below), whose sum is σ = 1532400240. Its totient is φ = 1532024208.

The previous prime is 1532212211. The next prime is 1532212259. The reversal of 1532212223 is 3222122351.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1532212223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1532211223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81203 + ... + 98276.

It is an arithmetic number, because the mean of its divisors is an integer number (383100060).

Almost surely, 2^1532212223 is an apocalyptic number.

1532212223 is a deficient number, since it is larger than the sum of its proper divisors (188017).

1532212223 is an equidigital number, since it uses as much as digits as its factorization.

1532212223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188016.

The product of its digits is 1440, while the sum is 23.

The square root of 1532212223 is about 39143.4825098636. The cubic root of 1532212223 is about 1152.8504520039.

Adding to 1532212223 its reverse (3222122351), we get a palindrome (4754334574).

The spelling of 1532212223 in words is "one billion, five hundred thirty-two million, two hundred twelve thousand, two hundred twenty-three".