148019989489 has 2 divisors, whose sum is σ = 148019989490. Its totient is φ = 148019989488.

The previous prime is 148019989483. The next prime is 148019989493. The reversal of 148019989489 is 984989910841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119572107264 + 28447882225 = 345792^2 + 168665^2 .

It is a cyclic number.

It is not a de Polignac number, because 148019989489 - 2¹⁷ = 148019858417 is a prime.

It is a super-2 number, since 2×148019989489² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (148019989483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74009994744 + 74009994745.

It is an arithmetic number, because the mean of its divisors is an integer number (74009994745).

Almost surely, 2^148019989489 is an apocalyptic number.

It is an amenable number.

148019989489 is a deficient number, since it is larger than the sum of its proper divisors (1).

148019989489 is an equidigital number, since it uses as much as digits as its factorization.

148019989489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53747712, while the sum is 70.

The spelling of 148019989489 in words is "one hundred forty-eight billion, nineteen million, nine hundred eighty-nine thousand, four hundred eighty-nine".