1352221253 has 4 divisors (see below), whose sum is σ = 1352492160. Its totient is φ = 1351950348.

The previous prime is 1352221249. The next prime is 1352221307. The reversal of 1352221253 is 3521222531.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1352221253 - 2² = 1352221249 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 (1352221223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127823 + ... + 137996.

It is an arithmetic number, because the mean of its divisors is an integer number (338123040).

Almost surely, 2^1352221253 is an apocalyptic number.

It is an amenable number.

1352221253 is a deficient number, since it is larger than the sum of its proper divisors (270907).

1352221253 is an equidigital number, since it uses as much as digits as its factorization.

1352221253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270906.

The product of its digits is 3600, while the sum is 26.

The square root of 1352221253 is about 36772.5611427869. The cubic root of 1352221253 is about 1105.8152778882.

Adding to 1352221253 its reverse (3521222531), we get a palindrome (4873443784).

The spelling of 1352221253 in words is "one billion, three hundred fifty-two million, two hundred twenty-one thousand, two hundred fifty-three".