148772734213021 has 2 divisors, whose sum is σ = 148772734213022. Its totient is φ = 148772734213020.

The previous prime is 148772734213009. The next prime is 148772734213063. The reversal of 148772734213021 is 120312437277841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148007784564025 + 764949648996 = 12165845^2 + 874614^2 .

It is a cyclic number.

It is not a de Polignac number, because 148772734213021 - 2³³ = 148764144278429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148772734213021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148772734213921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74386367106510 + 74386367106511.

It is an arithmetic number, because the mean of its divisors is an integer number (74386367106511).

Almost surely, 2^{148772734213021} is an apocalyptic number.

It is an amenable number.

148772734213021 is a deficient number, since it is larger than the sum of its proper divisors (1).

148772734213021 is an equidigital number, since it uses as much as digits as its factorization.

148772734213021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 148772734213021 in words is "one hundred forty-eight trillion, seven hundred seventy-two billion, seven hundred thirty-four million, two hundred thirteen thousand, twenty-one".