1253403363 has 8 divisors (see below), whose sum is σ = 1671612688. Its totient is φ = 835398144.

The previous prime is 1253403337. The next prime is 1253403367. The reversal of 1253403363 is 3633043521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1253403363 - 2⁶ = 1253403299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1253403363.

It is not an unprimeable number, because it can be changed into a prime (1253403367) 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 in 7 ways as a sum of consecutive naturals, for example, 36070 + ... + 61707.

It is an arithmetic number, because the mean of its divisors is an integer number (208951586).

Almost surely, 2^1253403363 is an apocalyptic number.

1253403363 is a deficient number, since it is larger than the sum of its proper divisors (418209325).

1253403363 is an equidigital number, since it uses as much as digits as its factorization.

1253403363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102053.

The product of its (nonzero) digits is 19440, while the sum is 30.

The square root of 1253403363 is about 35403.4371636427. The cubic root of 1253403363 is about 1078.1941021904.

Adding to 1253403363 its reverse (3633043521), we get a palindrome (4886446884).

The spelling of 1253403363 in words is "one billion, two hundred fifty-three million, four hundred three thousand, three hundred sixty-three".