1274274887 has 4 divisors (see below), whose sum is σ = 1275593616. Its totient is φ = 1272956160.

The previous prime is 1274274853. The next prime is 1274274889. The reversal of 1274274887 is 7884724721.

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

It is a cyclic number.

It is not a de Polignac number, because 1274274887 - 2¹² = 1274270791 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 (1274274889) 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, 657914 + ... + 659847.

It is an arithmetic number, because the mean of its divisors is an integer number (318898404).

Almost surely, 2^1274274887 is an apocalyptic number.

1274274887 is a deficient number, since it is larger than the sum of its proper divisors (1318729).

1274274887 is an equidigital number, since it uses as much as digits as its factorization.

1274274887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318728.

The product of its digits is 1404928, while the sum is 50.

The square root of 1274274887 is about 35696.9870857472. The cubic root of 1274274887 is about 1084.1458409438.

The spelling of 1274274887 in words is "one billion, two hundred seventy-four million, two hundred seventy-four thousand, eight hundred eighty-seven".