148078969 has 2 divisors, whose sum is σ = 148078970. Its totient is φ = 148078968.

The previous prime is 148078963. The next prime is 148079011. The reversal of 148078969 is 969870841.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139523344 + 8555625 = 11812^2 + 2925^2 .

It is an emirp because it is prime and its reverse (969870841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148078969 - 2³ = 148078961 is a prime.

It is a super-2 number, since 2×148078969² = 43854762120205922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (148078961) 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, 74039484 + 74039485.

It is an arithmetic number, because the mean of its divisors is an integer number (74039485).

Almost surely, 2^148078969 is an apocalyptic number.

It is an amenable number.

148078969 is a deficient number, since it is larger than the sum of its proper divisors (1).

148078969 is an equidigital number, since it uses as much as digits as its factorization.

148078969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 148078969 is about 12168.7702336760. The cubic root of 148078969 is about 529.0513098769.

The spelling of 148078969 in words is "one hundred forty-eight million, seventy-eight thousand, nine hundred sixty-nine".