1253608903 has 2 divisors, whose sum is σ = 1253608904. Its totient is φ = 1253608902.

The previous prime is 1253608901. The next prime is 1253608913. The reversal of 1253608903 is 3098063521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1253608903 - 2¹ = 1253608901 is a prime.

Together with 1253608901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253608901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626804451 + 626804452.

It is an arithmetic number, because the mean of its divisors is an integer number (626804452).

Almost surely, 2^1253608903 is an apocalyptic number.

1253608903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253608903 is an equidigital number, since it uses as much as digits as its factorization.

1253608903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1253608903 is about 35406.3398701419. The cubic root of 1253608903 is about 1078.2530350420.

The spelling of 1253608903 in words is "one billion, two hundred fifty-three million, six hundred eight thousand, nine hundred three".