1303390253 has 16 divisors (see below), whose sum is σ = 1517236800. Its totient is φ = 1107146880.

The previous prime is 1303390247. The next prime is 1303390267. The reversal of 1303390253 is 3520933031.

It is a cyclic number.

It is not a de Polignac number, because 1303390253 - 2¹⁰ = 1303389229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303390213) 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 15 ways as a sum of consecutive naturals, for example, 27458 + ... + 57971.

It is an arithmetic number, because the mean of its divisors is an integer number (94827300).

Almost surely, 2^1303390253 is an apocalyptic number.

It is an amenable number.

1303390253 is a deficient number, since it is larger than the sum of its proper divisors (213846547).

1303390253 is a wasteful number, since it uses less digits than its factorization.

1303390253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85532.

The product of its (nonzero) digits is 7290, while the sum is 29.

The square root of 1303390253 is about 36102.4964926250. The cubic root of 1303390253 is about 1092.3408025916.

The spelling of 1303390253 in words is "one billion, three hundred three million, three hundred ninety thousand, two hundred fifty-three".