1153225457 has 4 divisors (see below), whose sum is σ = 1169023140. Its totient is φ = 1137427776.

The previous prime is 1153225453. The next prime is 1153225477. The reversal of 1153225457 is 7545223511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 330912481 + 822312976 = 18191^2 + 28676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153225457 - 2² = 1153225453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153225453) 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, 7898732 + ... + 7898877.

It is an arithmetic number, because the mean of its divisors is an integer number (292255785).

Almost surely, 2^1153225457 is an apocalyptic number.

It is an amenable number.

1153225457 is a deficient number, since it is larger than the sum of its proper divisors (15797683).

1153225457 is an equidigital number, since it uses as much as digits as its factorization.

1153225457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15797682.

The product of its digits is 42000, while the sum is 35.

The square root of 1153225457 is about 33959.1733851105. The cubic root of 1153225457 is about 1048.6681396004.

Adding to 1153225457 its reverse (7545223511), we get a palindrome (8698448968).

The spelling of 1153225457 in words is "one billion, one hundred fifty-three million, two hundred twenty-five thousand, four hundred fifty-seven".