145321400027 has 2 divisors, whose sum is σ = 145321400028. Its totient is φ = 145321400026.

The previous prime is 145321400017. The next prime is 145321400039. The reversal of 145321400027 is 720004123541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145321400027 - 2⁸ = 145321399771 is a prime.

It is a super-2 number, since 2×145321400027² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145321400017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72660700013 + 72660700014.

It is an arithmetic number, because the mean of its divisors is an integer number (72660700014).

Almost surely, 2^145321400027 is an apocalyptic number.

145321400027 is a deficient number, since it is larger than the sum of its proper divisors (1).

145321400027 is an equidigital number, since it uses as much as digits as its factorization.

145321400027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 145321400027 its reverse (720004123541), we get a palindrome (865325523568).

The spelling of 145321400027 in words is "one hundred forty-five billion, three hundred twenty-one million, four hundred thousand, twenty-seven".