1214515554481 has 2 divisors, whose sum is σ = 1214515554482. Its totient is φ = 1214515554480.

The previous prime is 1214515554479. The next prime is 1214515554547. The reversal of 1214515554481 is 1844555154121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 748960430625 + 465555123856 = 865425^2 + 682316^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214515554481 - 2¹ = 1214515554479 is a prime.

It is a super-2 number, since 2×1214515554481² (a number of 25 digits) contains 22 as substring.

Together with 1214515554479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1214515584481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607257777240 + 607257777241.

It is an arithmetic number, because the mean of its divisors is an integer number (607257777241).

Almost surely, 2^{1214515554481} is an apocalyptic number.

It is an amenable number.

1214515554481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214515554481 is an equidigital number, since it uses as much as digits as its factorization.

1214515554481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640000, while the sum is 46.

The spelling of 1214515554481 in words is "one trillion, two hundred fourteen billion, five hundred fifteen million, five hundred fifty-four thousand, four hundred eighty-one".