145254424057 has 2 divisors, whose sum is σ = 145254424058. Its totient is φ = 145254424056.

The previous prime is 145254424039. The next prime is 145254424103. The reversal of 145254424057 is 750424452541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108765401616 + 36489022441 = 329796^2 + 191021^2 .

It is an emirp because it is prime and its reverse (750424452541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145254424057 - 2¹¹ = 145254422009 is a prime.

It is not a weakly prime, because it can be changed into another prime (145254427057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72627212028 + 72627212029.

It is an arithmetic number, because the mean of its divisors is an integer number (72627212029).

Almost surely, 2^145254424057 is an apocalyptic number.

It is an amenable number.

145254424057 is a deficient number, since it is larger than the sum of its proper divisors (1).

145254424057 is an equidigital number, since it uses as much as digits as its factorization.

145254424057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896000, while the sum is 43.

Adding to 145254424057 its reverse (750424452541), we get a palindrome (895678876598).

The spelling of 145254424057 in words is "one hundred forty-five billion, two hundred fifty-four million, four hundred twenty-four thousand, fifty-seven".