14545021481 has 2 divisors, whose sum is σ = 14545021482. Its totient is φ = 14545021480.

The previous prime is 14545021399. The next prime is 14545021487. The reversal of 14545021481 is 18412054541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13614222400 + 930799081 = 116680^2 + 30509^2 .

It is a cyclic number.

It is not a de Polignac number, because 14545021481 - 2¹⁸ = 14544759337 is a prime.

It is a super-2 number, since 2×14545021481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (14545021487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7272510740 + 7272510741.

It is an arithmetic number, because the mean of its divisors is an integer number (7272510741).

Almost surely, 2^14545021481 is an apocalyptic number.

It is an amenable number.

14545021481 is a deficient number, since it is larger than the sum of its proper divisors (1).

14545021481 is an equidigital number, since it uses as much as digits as its factorization.

14545021481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25600, while the sum is 35.

The spelling of 14545021481 in words is "fourteen billion, five hundred forty-five million, twenty-one thousand, four hundred eighty-one".