146448069 has 4 divisors (see below), whose sum is σ = 195264096. Its totient is φ = 97632044.

The previous prime is 146448041. The next prime is 146448083. The reversal of 146448069 is 960844641.

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 a cyclic number.

It is not a de Polignac number, because 146448069 - 2⁹ = 146447557 is a prime.

It is a super-2 number, since 2×146448069² = 42894073827657522, 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 146448069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146548069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24408009 + ... + 24408014.

It is an arithmetic number, because the mean of its divisors is an integer number (48816024).

Almost surely, 2^146448069 is an apocalyptic number.

It is an amenable number.

146448069 is a deficient number, since it is larger than the sum of its proper divisors (48816027).

146448069 is an equidigital number, since it uses as much as digits as its factorization.

146448069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48816026.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 146448069 is about 12101.5729969290. The cubic root of 146448069 is about 527.1018614007.

The spelling of 146448069 in words is "one hundred forty-six million, four hundred forty-eight thousand, sixty-nine".