1253303405 has 16 divisors (see below), whose sum is σ = 1553281920. Its totient is φ = 970068672.

The previous prime is 1253303399. The next prime is 1253303417. The reversal of 1253303405 is 5043033521.

It is a cyclic number.

It is not a de Polignac number, because 1253303405 - 2¹² = 1253299309 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14192 + ... + 52038.

It is an arithmetic number, because the mean of its divisors is an integer number (97080120).

Almost surely, 2^1253303405 is an apocalyptic number.

It is an amenable number.

1253303405 is a deficient number, since it is larger than the sum of its proper divisors (299978515).

1253303405 is a wasteful number, since it uses less digits than its factorization.

1253303405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38068.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 1253303405 is about 35402.0254364069. The cubic root of 1253303405 is about 1078.1654396985.

Adding to 1253303405 its reverse (5043033521), we get a palindrome (6296336926).

The spelling of 1253303405 in words is "one billion, two hundred fifty-three million, three hundred three thousand, four hundred five".