1253390219 has 4 divisors (see below), whose sum is σ = 1280058144. Its totient is φ = 1226722296.

The previous prime is 1253390191. The next prime is 1253390227. The reversal of 1253390219 is 9120933521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253390219 is a prime.

It is a super-2 number, since 2×1253390219² = 3141974082169735922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253390249) 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 3 ways as a sum of consecutive naturals, for example, 13333892 + ... + 13333985.

It is an arithmetic number, because the mean of its divisors is an integer number (320014536).

Almost surely, 2^1253390219 is an apocalyptic number.

1253390219 is a deficient number, since it is larger than the sum of its proper divisors (26667925).

1253390219 is an equidigital number, since it uses as much as digits as its factorization.

1253390219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26667924.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 1253390219 is about 35403.2515314625. The cubic root of 1253390219 is about 1078.1903332965.

The spelling of 1253390219 in words is "one billion, two hundred fifty-three million, three hundred ninety thousand, two hundred nineteen".