1427343931225 has 9 divisors (see below), whose sum is σ = 1769913881983. Its totient is φ = 1141870366120.

The previous prime is 1427343931171. The next prime is 1427343931243. The reversal of 1427343931225 is 5221393437241.

The square root of 1427343931225 is 1194715.

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

It can be written as a sum of positive squares in only one way, i.e., 513843815241 + 913500115984 = 716829^2 + 955772^2 .

It is not a de Polignac number, because 1427343931225 - 2¹¹ = 1427343929177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5854104 + ... + 6093046.

Almost surely, 2^{1427343931225} is an apocalyptic number.

1427343931225 is the 1194715-th square number.

1427343931225 is the 597358-th centered octagonal number.

It is an amenable number.

1427343931225 is a deficient number, since it is larger than the sum of its proper divisors (342569950758).

1427343931225 is an frugal number, since it uses more digits than its factorization.

1427343931225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477896 (or 238948 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 46.

The spelling of 1427343931225 in words is "one trillion, four hundred twenty-seven billion, three hundred forty-three million, nine hundred thirty-one thousand, two hundred twenty-five".