145897008017489 has 2 divisors, whose sum is σ = 145897008017490. Its totient is φ = 145897008017488.

The previous prime is 145897008017443. The next prime is 145897008017533. The reversal of 145897008017489 is 984710800798541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145510950835264 + 386057182225 = 12062792^2 + 621335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145897008017489 is a prime.

It is a super-2 number, since 2×145897008017489² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145897008017429) 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, 72948504008744 + 72948504008745.

It is an arithmetic number, because the mean of its divisors is an integer number (72948504008745).

Almost surely, 2^{145897008017489} is an apocalyptic number.

It is an amenable number.

145897008017489 is a deficient number, since it is larger than the sum of its proper divisors (1).

145897008017489 is an equidigital number, since it uses as much as digits as its factorization.

145897008017489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162570240, while the sum is 71.

The spelling of 145897008017489 in words is "one hundred forty-five trillion, eight hundred ninety-seven billion, eight million, seventeen thousand, four hundred eighty-nine".