148422881 has 2 divisors, whose sum is σ = 148422882. Its totient is φ = 148422880.

The previous prime is 148422811. The next prime is 148422893. The reversal of 148422881 is 188224841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114597025 + 33825856 = 10705^2 + 5816^2 .

It is a cyclic number.

It is not a de Polignac number, because 148422881 - 2¹⁰ = 148421857 is a prime.

It is a super-2 number, since 2×148422881² = 44058703208680322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (148422811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74211440 + 74211441.

It is an arithmetic number, because the mean of its divisors is an integer number (74211441).

Almost surely, 2^148422881 is an apocalyptic number.

It is an amenable number.

148422881 is a deficient number, since it is larger than the sum of its proper divisors (1).

148422881 is an equidigital number, since it uses as much as digits as its factorization.

148422881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32768, while the sum is 38.

The square root of 148422881 is about 12182.8929651376. The cubic root of 148422881 is about 529.4605654247.

The spelling of 148422881 in words is "one hundred forty-eight million, four hundred twenty-two thousand, eight hundred eighty-one".