1253323603 has 8 divisors (see below), whose sum is σ = 1432662272. Its totient is φ = 1074058056.

The previous prime is 1253323559. The next prime is 1253323627. The reversal of 1253323603 is 3063233521.

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 1253323603 - 2¹⁷ = 1253192531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253323003) 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, 25426 + ... + 56152.

It is an arithmetic number, because the mean of its divisors is an integer number (179082784).

Almost surely, 2^1253323603 is an apocalyptic number.

1253323603 is a deficient number, since it is larger than the sum of its proper divisors (179338669).

1253323603 is an equidigital number, since it uses as much as digits as its factorization.

1253323603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36561.

The product of its (nonzero) digits is 9720, while the sum is 28.

The square root of 1253323603 is about 35402.3107014217. The cubic root of 1253323603 is about 1078.1712315040.

The spelling of 1253323603 in words is "one billion, two hundred fifty-three million, three hundred twenty-three thousand, six hundred three".