1274223641 has 4 divisors (see below), whose sum is σ = 1275386292. Its totient is φ = 1273060992.

The previous prime is 1274223607. The next prime is 1274223647. The reversal of 1274223641 is 1463224721.

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

It can be written as a sum of positive squares in 2 ways, for example, as 231192025 + 1043031616 = 15205^2 + 32296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1274223641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1274223598 and 1274223607.

It is not an unprimeable number, because it can be changed into a prime (1274223647) 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, 579680 + ... + 581873.

It is an arithmetic number, because the mean of its divisors is an integer number (318846573).

Almost surely, 2^1274223641 is an apocalyptic number.

It is an amenable number.

1274223641 is a deficient number, since it is larger than the sum of its proper divisors (1162651).

1274223641 is a wasteful number, since it uses less digits than its factorization.

1274223641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162650.

The product of its digits is 16128, while the sum is 32.

The square root of 1274223641 is about 35696.2692868597. The cubic root of 1274223641 is about 1084.1313074803.

The spelling of 1274223641 in words is "one billion, two hundred seventy-four million, two hundred twenty-three thousand, six hundred forty-one".