1252105219 has 2 divisors, whose sum is σ = 1252105220. Its totient is φ = 1252105218.

The previous prime is 1252105193. The next prime is 1252105229. The reversal of 1252105219 is 9125012521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1252105219 - 2⁷ = 1252105091 is a prime.

It is a super-2 number, since 2×1252105219² = 3135534958894075922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1252105229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626052609 + 626052610.

It is an arithmetic number, because the mean of its divisors is an integer number (626052610).

Almost surely, 2^1252105219 is an apocalyptic number.

1252105219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252105219 is an equidigital number, since it uses as much as digits as its factorization.

1252105219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1252105219 is about 35385.0988270487. The cubic root of 1252105219 is about 1077.8217467492.

The spelling of 1252105219 in words is "one billion, two hundred fifty-two million, one hundred five thousand, two hundred nineteen".