1253203379 has 2 divisors, whose sum is σ = 1253203380. Its totient is φ = 1253203378.

The previous prime is 1253203363. The next prime is 1253203409. The reversal of 1253203379 is 9733023521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1253203379 - 2⁴ = 1253203363 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1253203319) by changing a digit.

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 as a sum of consecutive naturals, namely, 626601689 + 626601690.

It is an arithmetic number, because the mean of its divisors is an integer number (626601690).

Almost surely, 2^1253203379 is an apocalyptic number.

1253203379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253203379 is an equidigital number, since it uses as much as digits as its factorization.

1253203379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 1253203379 is about 35400.6126924380. The cubic root of 1253203379 is about 1078.1367561824.

The spelling of 1253203379 in words is "one billion, two hundred fifty-three million, two hundred three thousand, three hundred seventy-nine".