148121429 has 2 divisors, whose sum is σ = 148121430. Its totient is φ = 148121428.

The previous prime is 148121419. The next prime is 148121431. The reversal of 148121429 is 924121841.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99540529 + 48580900 = 9977^2 + 6970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148121429 is a prime.

It is a super-3 number, since 3×148121429³ (a number of 25 digits) contains 333 as substring.

Together with 148121431, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 148121395 and 148121404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148121419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74060714 + 74060715.

It is an arithmetic number, because the mean of its divisors is an integer number (74060715).

Almost surely, 2^148121429 is an apocalyptic number.

It is an amenable number.

148121429 is a deficient number, since it is larger than the sum of its proper divisors (1).

148121429 is an equidigital number, since it uses as much as digits as its factorization.

148121429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 32.

The square root of 148121429 is about 12170.5147384981. The cubic root of 148121429 is about 529.1018715739.

The spelling of 148121429 in words is "one hundred forty-eight million, one hundred twenty-one thousand, four hundred twenty-nine".