148948989121 has 2 divisors, whose sum is σ = 148948989122. Its totient is φ = 148948989120.

The previous prime is 148948989109. The next prime is 148948989169. The reversal of 148948989121 is 121989849841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143216833600 + 5732155521 = 378440^2 + 75711^2 .

It is a cyclic number.

It is not a de Polignac number, because 148948989121 - 2¹⁷ = 148948858049 is a prime.

It is not a weakly prime, because it can be changed into another prime (148948939121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74474494560 + 74474494561.

It is an arithmetic number, because the mean of its divisors is an integer number (74474494561).

Almost surely, 2^148948989121 is an apocalyptic number.

It is an amenable number.

148948989121 is a deficient number, since it is larger than the sum of its proper divisors (1).

148948989121 is an equidigital number, since it uses as much as digits as its factorization.

148948989121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11943936, while the sum is 64.

The spelling of 148948989121 in words is "one hundred forty-eight billion, nine hundred forty-eight million, nine hundred eighty-nine thousand, one hundred twenty-one".