1274561401 has 9 divisors (see below), whose sum is σ = 1345890501. Its totient is φ = 1206836604.

The previous prime is 1274561381. The next prime is 1274561413. The reversal of 1274561401 is 1041654721.

The square root of 1274561401 is 35701.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1274561401 - 2¹⁹ = 1274037113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1274561471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 677380 + ... + 679258.

It is an arithmetic number, because the mean of its divisors is an integer number (149543389).

Almost surely, 2^1274561401 is an apocalyptic number.

1274561401 is the 35701-st square number.

1274561401 is the 17851-st centered octagonal number.

It is an amenable number.

1274561401 is a deficient number, since it is larger than the sum of its proper divisors (71329100).

1274561401 is an frugal number, since it uses more digits than its factorization.

1274561401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796 (or 1898 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The cubic root of 1274561401 is about 1084.2270896830.

The spelling of 1274561401 in words is "one billion, two hundred seventy-four million, five hundred sixty-one thousand, four hundred one".