148667969 has 2 divisors, whose sum is σ = 148667970. Its totient is φ = 148667968.

The previous prime is 148667963. The next prime is 148667977. The reversal of 148667969 is 969766841.

148667969 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., 120450625 + 28217344 = 10975^2 + 5312^2 .

It is an emirp because it is prime and its reverse (969766841) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148667969 is a prime.

It is a super-3 number, since 3×148667969³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148667963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74333984 + 74333985.

It is an arithmetic number, because the mean of its divisors is an integer number (74333985).

Almost surely, 2^148667969 is an apocalyptic number.

It is an amenable number.

148667969 is a deficient number, since it is larger than the sum of its proper divisors (1).

148667969 is an equidigital number, since it uses as much as digits as its factorization.

148667969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 56.

The square root of 148667969 is about 12192.9475107539. The cubic root of 148667969 is about 529.7518346903.

The spelling of 148667969 in words is "one hundred forty-eight million, six hundred sixty-seven thousand, nine hundred sixty-nine".