1455232213 has 4 divisors (see below), whose sum is σ = 1455317248. Its totient is φ = 1455147180.

The previous prime is 1455232201. The next prime is 1455232301. The reversal of 1455232213 is 3122325541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3122325541 = 12269 ⋅254489.

It is a cyclic number.

It is not a de Polignac number, because 1455232213 - 2²⁵ = 1421677781 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 (1455232013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6903 + ... + 54388.

It is an arithmetic number, because the mean of its divisors is an integer number (363829312).

Almost surely, 2^1455232213 is an apocalyptic number.

It is an amenable number.

1455232213 is a deficient number, since it is larger than the sum of its proper divisors (85035).

1455232213 is an equidigital number, since it uses as much as digits as its factorization.

1455232213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85034.

The product of its digits is 7200, while the sum is 28.

The square root of 1455232213 is about 38147.5059866304. The cubic root of 1455232213 is about 1133.2109609414.

Adding to 1455232213 its reverse (3122325541), we get a palindrome (4577557754).

The spelling of 1455232213 in words is "one billion, four hundred fifty-five million, two hundred thirty-two thousand, two hundred thirteen".