148023871071821 has 2 divisors, whose sum is σ = 148023871071822. Its totient is φ = 148023871071820.

The previous prime is 148023871071773. The next prime is 148023871071893. The reversal of 148023871071821 is 128170178320841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130986079357225 + 17037791714596 = 11444915^2 + 4127686^2 .

It is a cyclic number.

It is not a de Polignac number, because 148023871071821 - 2²² = 148023866877517 is a prime.

It is a super-2 number, since 2×148023871071821² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148023871071521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74011935535910 + 74011935535911.

It is an arithmetic number, because the mean of its divisors is an integer number (74011935535911).

Almost surely, 2^{148023871071821} is an apocalyptic number.

It is an amenable number.

148023871071821 is a deficient number, since it is larger than the sum of its proper divisors (1).

148023871071821 is an equidigital number, since it uses as much as digits as its factorization.

148023871071821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1204224, while the sum is 53.

The spelling of 148023871071821 in words is "one hundred forty-eight trillion, twenty-three billion, eight hundred seventy-one million, seventy-one thousand, eight hundred twenty-one".