148147045621 has 2 divisors, whose sum is σ = 148147045622. Its totient is φ = 148147045620.

The previous prime is 148147045609. The next prime is 148147045663. The reversal of 148147045621 is 126540741841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134864483121 + 13282562500 = 367239^2 + 115250^2 .

It is an emirp because it is prime and its reverse (126540741841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148147045621 - 2⁵ = 148147045589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148147045691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74073522810 + 74073522811.

It is an arithmetic number, because the mean of its divisors is an integer number (74073522811).

Almost surely, 2^148147045621 is an apocalyptic number.

It is an amenable number.

148147045621 is a deficient number, since it is larger than the sum of its proper divisors (1).

148147045621 is an equidigital number, since it uses as much as digits as its factorization.

148147045621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 148147045621 in words is "one hundred forty-eight billion, one hundred forty-seven million, forty-five thousand, six hundred twenty-one".