1346854981 has 2 divisors, whose sum is σ = 1346854982. Its totient is φ = 1346854980.

The previous prime is 1346854967. The next prime is 1346855011. The reversal of 1346854981 is 1894586431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1215637956 + 131217025 = 34866^2 + 11455^2 .

It is an emirp because it is prime and its reverse (1894586431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1346854981 - 2¹³ = 1346846789 is a prime.

It is a super-2 number, since 2×1346854981² = 3628036679689020722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1346851981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673427490 + 673427491.

It is an arithmetic number, because the mean of its divisors is an integer number (673427491).

Almost surely, 2^1346854981 is an apocalyptic number.

It is an amenable number.

1346854981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346854981 is an equidigital number, since it uses as much as digits as its factorization.

1346854981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 49.

The square root of 1346854981 is about 36699.5228988062. The cubic root of 1346854981 is about 1104.3505341789.

The spelling of 1346854981 in words is "one billion, three hundred forty-six million, eight hundred fifty-four thousand, nine hundred eighty-one".