145424444057 has 2 divisors, whose sum is σ = 145424444058. Its totient is φ = 145424444056.

The previous prime is 145424444051. The next prime is 145424444107. The reversal of 145424444057 is 750444424541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144841897561 + 582546496 = 380581^2 + 24136^2 .

It is a cyclic number.

It is not a de Polignac number, because 145424444057 - 2⁴ = 145424444041 is a prime.

It is a super-2 number, since 2×145424444057² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145424443999 and 145424444017.

It is not a weakly prime, because it can be changed into another prime (145424444051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72712222028 + 72712222029.

It is an arithmetic number, because the mean of its divisors is an integer number (72712222029).

Almost surely, 2^145424444057 is an apocalyptic number.

It is an amenable number.

145424444057 is a deficient number, since it is larger than the sum of its proper divisors (1).

145424444057 is an equidigital number, since it uses as much as digits as its factorization.

145424444057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1433600, while the sum is 44.

Adding to 145424444057 its reverse (750444424541), we get a palindrome (895868868598).

The spelling of 145424444057 in words is "one hundred forty-five billion, four hundred twenty-four million, four hundred forty-four thousand, fifty-seven".