1427134469 has 2 divisors, whose sum is σ = 1427134470. Its totient is φ = 1427134468.

The previous prime is 1427134463. The next prime is 1427134477. The reversal of 1427134469 is 9644317241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1323868225 + 103266244 = 36385^2 + 10162^2 .

It is a cyclic number.

It is not a de Polignac number, because 1427134469 - 2¹² = 1427130373 is a prime.

It is a super-2 number, since 2×1427134469² = 4073425585215823922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1427134463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713567234 + 713567235.

It is an arithmetic number, because the mean of its divisors is an integer number (713567235).

Almost surely, 2^1427134469 is an apocalyptic number.

It is an amenable number.

1427134469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427134469 is an equidigital number, since it uses as much as digits as its factorization.

1427134469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 1427134469 is about 37777.4333299657. The cubic root of 1427134469 is about 1125.8701334702.

The spelling of 1427134469 in words is "one billion, four hundred twenty-seven million, one hundred thirty-four thousand, four hundred sixty-nine".