148256545 has 4 divisors (see below), whose sum is σ = 177907860. Its totient is φ = 118605232.

The previous prime is 148256543. The next prime is 148256567. The reversal of 148256545 is 545652841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93392896 + 54863649 = 9664^2 + 7407^2 .

It is a cyclic number.

It is not a de Polignac number, because 148256545 - 2¹ = 148256543 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 148256498 and 148256507.

It is not an unprimeable number, because it can be changed into a prime (148256543) 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, 14825650 + ... + 14825659.

It is an arithmetic number, because the mean of its divisors is an integer number (44476965).

Almost surely, 2^148256545 is an apocalyptic number.

It is an amenable number.

148256545 is a deficient number, since it is larger than the sum of its proper divisors (29651315).

148256545 is an equidigital number, since it uses as much as digits as its factorization.

148256545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29651314.

The product of its digits is 192000, while the sum is 40.

The square root of 148256545 is about 12176.0644298558. The cubic root of 148256545 is about 529.2627044848.

The spelling of 148256545 in words is "one hundred forty-eight million, two hundred fifty-six thousand, five hundred forty-five".