145053533491 has 2 divisors, whose sum is σ = 145053533492. Its totient is φ = 145053533490.

The previous prime is 145053533479. The next prime is 145053533497. The reversal of 145053533491 is 194335350541.

145053533491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145053533491 - 2⁷ = 145053533363 is a prime.

It is not a weakly prime, because it can be changed into another prime (145053533497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72526766745 + 72526766746.

It is an arithmetic number, because the mean of its divisors is an integer number (72526766746).

Almost surely, 2^145053533491 is an apocalyptic number.

145053533491 is a deficient number, since it is larger than the sum of its proper divisors (1).

145053533491 is an equidigital number, since it uses as much as digits as its factorization.

145053533491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 145053533491 in words is "one hundred forty-five billion, fifty-three million, five hundred thirty-three thousand, four hundred ninety-one".