1330252681 has 8 divisors (see below), whose sum is σ = 1423222400. Its totient is φ = 1239578640.

The previous prime is 1330252661. The next prime is 1330252709. The reversal of 1330252681 is 1862520331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1330252681 - 2⁹ = 1330252169 is a prime.

It is a super-2 number, since 2×1330252681² = 3539144390615375522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330252621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572721 + ... + 575038.

It is an arithmetic number, because the mean of its divisors is an integer number (177902800).

Almost surely, 2^1330252681 is an apocalyptic number.

It is an amenable number.

1330252681 is a deficient number, since it is larger than the sum of its proper divisors (92969719).

1330252681 is a wasteful number, since it uses less digits than its factorization.

1330252681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147839.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1330252681 is about 36472.6292032806. The cubic root of 1330252681 is about 1099.7940884546.

The spelling of 1330252681 in words is "one billion, three hundred thirty million, two hundred fifty-two thousand, six hundred eighty-one".