145443421451 has 2 divisors, whose sum is σ = 145443421452. Its totient is φ = 145443421450.

The previous prime is 145443421441. The next prime is 145443421573. The reversal of 145443421451 is 154124344541.

It is a weak prime.

It is an emirp because it is prime and its reverse (154124344541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145443421451 - 2²² = 145439227147 is a prime.

It is not a weakly prime, because it can be changed into another prime (145443421441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72721710725 + 72721710726.

It is an arithmetic number, because the mean of its divisors is an integer number (72721710726).

Almost surely, 2^145443421451 is an apocalyptic number.

145443421451 is a deficient number, since it is larger than the sum of its proper divisors (1).

145443421451 is an equidigital number, since it uses as much as digits as its factorization.

145443421451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153600, while the sum is 38.

Adding to 145443421451 its reverse (154124344541), we get a palindrome (299567765992).

The spelling of 145443421451 in words is "one hundred forty-five billion, four hundred forty-three million, four hundred twenty-one thousand, four hundred fifty-one".