1330653261 has 48 divisors (see below), whose sum is σ = 2103349248. Its totient is φ = 745970400.

The previous prime is 1330653253. The next prime is 1330653281. The reversal of 1330653261 is 1623560331.

It is a happy number.

It is not a de Polignac number, because 1330653261 - 2³ = 1330653253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330653211) 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 47 ways as a sum of consecutive naturals, for example, 2330106 + ... + 2330676.

It is an arithmetic number, because the mean of its divisors is an integer number (43819776).

Almost surely, 2^1330653261 is an apocalyptic number.

It is an amenable number.

1330653261 is a deficient number, since it is larger than the sum of its proper divisors (772695987).

1330653261 is a wasteful number, since it uses less digits than its factorization.

1330653261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 1330653261 is about 36478.1203051912. The cubic root of 1330653261 is about 1099.9044713184.

The spelling of 1330653261 in words is "one billion, three hundred thirty million, six hundred fifty-three thousand, two hundred sixty-one".