1253601303 has 4 divisors (see below), whose sum is σ = 1671468408. Its totient is φ = 835734200.

The previous prime is 1253601277. The next prime is 1253601311. The reversal of 1253601303 is 3031063521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1253601303 - 2⁸ = 1253601047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253601203) 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, 208933548 + ... + 208933553.

It is an arithmetic number, because the mean of its divisors is an integer number (417867102).

Almost surely, 2^1253601303 is an apocalyptic number.

1253601303 is a deficient number, since it is larger than the sum of its proper divisors (417867105).

1253601303 is an equidigital number, since it uses as much as digits as its factorization.

1253601303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417867104.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 1253601303 is about 35406.2325445676. The cubic root of 1253601303 is about 1078.2508560691.

Adding to 1253601303 its reverse (3031063521), we get a palindrome (4284664824).

The spelling of 1253601303 in words is "one billion, two hundred fifty-three million, six hundred one thousand, three hundred three".