148205769 has 4 divisors (see below), whose sum is σ = 197607696. Its totient is φ = 98803844.

The previous prime is 148205749. The next prime is 148205789. The reversal of 148205769 is 967502841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (148205749) and next prime (148205789).

It is a cyclic number.

It is not a de Polignac number, because 148205769 - 2¹⁷ = 148074697 is a prime.

It is a super-2 number, since 2×148205769² = 43929899929762722, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 148205769.

It is not an unprimeable number, because it can be changed into a prime (148205749) 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 in 3 ways as a sum of consecutive naturals, for example, 24700959 + ... + 24700964.

It is an arithmetic number, because the mean of its divisors is an integer number (49401924).

Almost surely, 2^148205769 is an apocalyptic number.

It is an amenable number.

148205769 is a deficient number, since it is larger than the sum of its proper divisors (49401927).

148205769 is an equidigital number, since it uses as much as digits as its factorization.

148205769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49401926.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 148205769 is about 12173.9791769166. The cubic root of 148205769 is about 529.2022756481.

The spelling of 148205769 in words is "one hundred forty-eight million, two hundred five thousand, seven hundred sixty-nine".