148255979 has 2 divisors, whose sum is σ = 148255980. Its totient is φ = 148255978.

The previous prime is 148255969. The next prime is 148256021. The reversal of 148255979 is 979552841.

It is a weak prime.

It is an emirp because it is prime and its reverse (979552841) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148255979 is a prime.

It is not a weakly prime, because it can be changed into another prime (148255909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74127989 + 74127990.

It is an arithmetic number, because the mean of its divisors is an integer number (74127990).

Almost surely, 2^148255979 is an apocalyptic number.

148255979 is a deficient number, since it is larger than the sum of its proper divisors (1).

148255979 is an equidigital number, since it uses as much as digits as its factorization.

148255979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 50.

The square root of 148255979 is about 12176.0411875125. The cubic root of 148255979 is about 529.2620309607.

The spelling of 148255979 in words is "one hundred forty-eight million, two hundred fifty-five thousand, nine hundred seventy-nine".