148505849 has 2 divisors, whose sum is σ = 148505850. Its totient is φ = 148505848.

The previous prime is 148505837. The next prime is 148505857. The reversal of 148505849 is 948505841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146047225 + 2458624 = 12085^2 + 1568^2 .

It is a cyclic number.

It is not a de Polignac number, because 148505849 - 2¹² = 148501753 is a prime.

It is not a weakly prime, because it can be changed into another prime (148505879) 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, 74252924 + 74252925.

It is an arithmetic number, because the mean of its divisors is an integer number (74252925).

Almost surely, 2^148505849 is an apocalyptic number.

It is an amenable number.

148505849 is a deficient number, since it is larger than the sum of its proper divisors (1).

148505849 is an equidigital number, since it uses as much as digits as its factorization.

148505849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 44.

The square root of 148505849 is about 12186.2975919678. The cubic root of 148505849 is about 529.5592027354.

The spelling of 148505849 in words is "one hundred forty-eight million, five hundred five thousand, eight hundred forty-nine".