1303665241 has 4 divisors (see below), whose sum is σ = 1303737984. Its totient is φ = 1303592500.

The previous prime is 1303665203. The next prime is 1303665263. The reversal of 1303665241 is 1425663031.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1303665241 - 2¹³ = 1303657049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303665941) 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, 11616 + ... + 52366.

It is an arithmetic number, because the mean of its divisors is an integer number (325934496).

Almost surely, 2^1303665241 is an apocalyptic number.

It is an amenable number.

1303665241 is a deficient number, since it is larger than the sum of its proper divisors (72743).

1303665241 is an equidigital number, since it uses as much as digits as its factorization.

1303665241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72742.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1303665241 is about 36106.3047264602. The cubic root of 1303665241 is about 1092.4176175209.

The spelling of 1303665241 in words is "one billion, three hundred three million, six hundred sixty-five thousand, two hundred forty-one".