1253214019 has 4 divisors (see below), whose sum is σ = 1253314296. Its totient is φ = 1253113744.

The previous prime is 1253213993. The next prime is 1253214031. The reversal of 1253214019 is 9104123521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1253214019 - 2¹³ = 1253205827 is a prime.

It is a super-2 number, since 2×1253214019² = 3141090754836264722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253214089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28189 + ... + 57454.

It is an arithmetic number, because the mean of its divisors is an integer number (313328574).

Almost surely, 2^1253214019 is an apocalyptic number.

1253214019 is a deficient number, since it is larger than the sum of its proper divisors (100277).

1253214019 is an equidigital number, since it uses as much as digits as its factorization.

1253214019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100276.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1253214019 is about 35400.7629720039. The cubic root of 1253214019 is about 1078.1398073878.

The spelling of 1253214019 in words is "one billion, two hundred fifty-three million, two hundred fourteen thousand, nineteen".