148451923 has 2 divisors, whose sum is σ = 148451924. Its totient is φ = 148451922.

The previous prime is 148451909. The next prime is 148451969. The reversal of 148451923 is 329154841.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148451923 is a prime.

It is not a weakly prime, because it can be changed into another prime (148458923) 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, 74225961 + 74225962.

It is an arithmetic number, because the mean of its divisors is an integer number (74225962).

Almost surely, 2^148451923 is an apocalyptic number.

148451923 is a deficient number, since it is larger than the sum of its proper divisors (1).

148451923 is an equidigital number, since it uses as much as digits as its factorization.

148451923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 37.

The square root of 148451923 is about 12184.0848240645. The cubic root of 148451923 is about 529.4950964683.

The spelling of 148451923 in words is "one hundred forty-eight million, four hundred fifty-one thousand, nine hundred twenty-three".