145232005553 has 2 divisors, whose sum is σ = 145232005554. Its totient is φ = 145232005552.

The previous prime is 145232005547. The next prime is 145232005591. The reversal of 145232005553 is 355500232541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79240561009 + 65991444544 = 281497^2 + 256888^2 .

It is a cyclic number.

It is not a de Polignac number, because 145232005553 - 2¹² = 145232001457 is a prime.

It is not a weakly prime, because it can be changed into another prime (145232001553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72616002776 + 72616002777.

It is an arithmetic number, because the mean of its divisors is an integer number (72616002777).

Almost surely, 2^145232005553 is an apocalyptic number.

It is an amenable number.

145232005553 is a deficient number, since it is larger than the sum of its proper divisors (1).

145232005553 is an equidigital number, since it uses as much as digits as its factorization.

145232005553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 145232005553 in words is "one hundred forty-five billion, two hundred thirty-two million, five thousand, five hundred fifty-three".