148443819 has 8 divisors (see below), whose sum is σ = 198354432. Its totient is φ = 98747880.

The previous prime is 148443811. The next prime is 148443833. The reversal of 148443819 is 918344841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 148443819 - 2³ = 148443811 is a prime.

It is a super-2 number, since 2×148443819² = 44071134798609522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (148443811) 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 7 ways as a sum of consecutive naturals, for example, 52047 + ... + 54824.

It is an arithmetic number, because the mean of its divisors is an integer number (24794304).

Almost surely, 2^148443819 is an apocalyptic number.

148443819 is a deficient number, since it is larger than the sum of its proper divisors (49910613).

148443819 is a wasteful number, since it uses less digits than its factorization.

148443819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107337.

The product of its digits is 110592, while the sum is 42.

The square root of 148443819 is about 12183.7522545396. The cubic root of 148443819 is about 529.4854612359.

The spelling of 148443819 in words is "one hundred forty-eight million, four hundred forty-three thousand, eight hundred nineteen".