148443815 has 16 divisors (see below), whose sum is σ = 197023008. Its totient is φ = 106655616.

The previous prime is 148443811. The next prime is 148443833. The reversal of 148443815 is 518344841.

It is a cyclic number.

It is not a de Polignac number, because 148443815 - 2² = 148443811 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 28457 + ... + 33266.

It is an arithmetic number, because the mean of its divisors is an integer number (12313938).

Almost surely, 2^148443815 is an apocalyptic number.

148443815 is a deficient number, since it is larger than the sum of its proper divisors (48579193).

148443815 is a wasteful number, since it uses less digits than its factorization.

148443815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61778.

The product of its digits is 61440, while the sum is 38.

The square root of 148443815 is about 12183.7520903866. The cubic root of 148443815 is about 529.4854564800.

The spelling of 148443815 in words is "one hundred forty-eight million, four hundred forty-three thousand, eight hundred fifteen".