148345649 has 2 divisors, whose sum is σ = 148345650. Its totient is φ = 148345648.

The previous prime is 148345619. The next prime is 148345733. The reversal of 148345649 is 946543841.

148345649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111682624 + 36663025 = 10568^2 + 6055^2 .

It is a cyclic number.

It is not a de Polignac number, because 148345649 - 2¹² = 148341553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (148345619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74172824 + 74172825.

It is an arithmetic number, because the mean of its divisors is an integer number (74172825).

Almost surely, 2^148345649 is an apocalyptic number.

It is an amenable number.

148345649 is a deficient number, since it is larger than the sum of its proper divisors (1).

148345649 is an equidigital number, since it uses as much as digits as its factorization.

148345649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 44.

The square root of 148345649 is about 12179.7228622001. The cubic root of 148345649 is about 529.3687143732.

The spelling of 148345649 in words is "one hundred forty-eight million, three hundred forty-five thousand, six hundred forty-nine".