1274000005 has 4 divisors (see below), whose sum is σ = 1528800012. Its totient is φ = 1019200000.

The previous prime is 1274000003. The next prime is 1274000029. The reversal of 1274000005 is 5000004721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5000004721 = 79 ⋅63291199.

It can be written as a sum of positive squares in 2 ways, for example, as 260596449 + 1013403556 = 16143^2 + 31834^2 .

It is not a de Polignac number, because 1274000005 - 2¹ = 1274000003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274000003) 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, 127399996 + ... + 127400005.

It is an arithmetic number, because the mean of its divisors is an integer number (382200003).

Almost surely, 2^1274000005 is an apocalyptic number.

It is an amenable number.

1274000005 is a deficient number, since it is larger than the sum of its proper divisors (254800007).

1274000005 is an equidigital number, since it uses as much as digits as its factorization.

1274000005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254800006.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 1274000005 is about 35693.1366651910. The cubic root of 1274000005 is about 1084.0678793226.

Adding to 1274000005 its reverse (5000004721), we get a palindrome (6274004726).

The spelling of 1274000005 in words is "one billion, two hundred seventy-four million, five", and thus it is an aban number.