1330523253 has 10 divisors (see below), whose sum is σ = 1987571894. Its totient is φ = 887015448.

The previous prime is 1330523231. The next prime is 1330523261. The reversal of 1330523253 is 3523250331.

1330523253 is a `hidden beast` number, since 1 + 330 + 5 + 2 + 325 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 991116324 + 339406929 = 31482^2 + 18423^2 .

It is not a de Polignac number, because 1330523253 - 2⁵ = 1330523221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330523263) 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 9 ways as a sum of consecutive naturals, for example, 8213026 + ... + 8213187.

Almost surely, 2^1330523253 is an apocalyptic number.

It is an amenable number.

1330523253 is a deficient number, since it is larger than the sum of its proper divisors (657048641).

1330523253 is an equidigital number, since it uses as much as digits as its factorization.

1330523253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16426225 (or 16426216 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The square root of 1330523253 is about 36476.3382619473. The cubic root of 1330523253 is about 1099.8686490543.

Adding to 1330523253 its reverse (3523250331), we get a palindrome (4853773584).

The spelling of 1330523253 in words is "one billion, three hundred thirty million, five hundred twenty-three thousand, two hundred fifty-three".