1353231057 has 4 divisors (see below), whose sum is σ = 1804308080. Its totient is φ = 902154036.

The previous prime is 1353231049. The next prime is 1353231067. The reversal of 1353231057 is 7501323531.

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 not a de Polignac number, because 1353231057 - 2³ = 1353231049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1353231017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225538507 + ... + 225538512.

It is an arithmetic number, because the mean of its divisors is an integer number (451077020).

Almost surely, 2^1353231057 is an apocalyptic number.

It is an amenable number.

1353231057 is a deficient number, since it is larger than the sum of its proper divisors (451077023).

1353231057 is an equidigital number, since it uses as much as digits as its factorization.

1353231057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451077022.

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 1353231057 is about 36786.2889810864. The cubic root of 1353231057 is about 1106.0904741847.

Adding to 1353231057 its reverse (7501323531), we get a palindrome (8854554588).

The spelling of 1353231057 in words is "one billion, three hundred fifty-three million, two hundred thirty-one thousand, fifty-seven".