1346581487 has 2 divisors, whose sum is σ = 1346581488. Its totient is φ = 1346581486.

The previous prime is 1346581463. The next prime is 1346581499. The reversal of 1346581487 is 7841856431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1346581487 - 2⁸ = 1346581231 is a prime.

It is a super-2 number, since 2×1346581487² = 3626563402262262338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1346581417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673290743 + 673290744.

It is an arithmetic number, because the mean of its divisors is an integer number (673290744).

Almost surely, 2^1346581487 is an apocalyptic number.

1346581487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346581487 is an equidigital number, since it uses as much as digits as its factorization.

1346581487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 47.

The square root of 1346581487 is about 36695.7965848951. The cubic root of 1346581487 is about 1104.2757788674.

The spelling of 1346581487 in words is "one billion, three hundred forty-six million, five hundred eighty-one thousand, four hundred eighty-seven".