1274469681 has 4 divisors (see below), whose sum is σ = 1699292912. Its totient is φ = 849646452.

The previous prime is 1274469661. The next prime is 1274469701. The reversal of 1274469681 is 1869644721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1274469661) and next prime (1274469701).

It is not a de Polignac number, because 1274469681 - 2⁵ = 1274469649 is a prime.

It is a super-2 number, since 2×1274469681² = 3248545935576483522, which contains 22 as substring.

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 1274469681.

It is not an unprimeable number, because it can be changed into a prime (1274469601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212411611 + ... + 212411616.

It is an arithmetic number, because the mean of its divisors is an integer number (424823228).

Almost surely, 2^1274469681 is an apocalyptic number.

It is an amenable number.

1274469681 is a deficient number, since it is larger than the sum of its proper divisors (424823231).

1274469681 is an equidigital number, since it uses as much as digits as its factorization.

1274469681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424823230.

The product of its digits is 580608, while the sum is 48.

The square root of 1274469681 is about 35699.7154190338. The cubic root of 1274469681 is about 1084.2010813389.

The spelling of 1274469681 in words is "one billion, two hundred seventy-four million, four hundred sixty-nine thousand, six hundred eighty-one".