148390345 has 4 divisors (see below), whose sum is σ = 178068420. Its totient is φ = 118712272.

The previous prime is 148390343. The next prime is 148390391. The reversal of 148390345 is 543093841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543093841 = 14503 ⋅37447.

It can be written as a sum of positive squares in 2 ways, for example, as 19998784 + 128391561 = 4472^2 + 11331^2 .

It is a cyclic number.

It is not a de Polignac number, because 148390345 - 2¹ = 148390343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148390343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14839030 + ... + 14839039.

It is an arithmetic number, because the mean of its divisors is an integer number (44517105).

Almost surely, 2^148390345 is an apocalyptic number.

It is an amenable number.

148390345 is a deficient number, since it is larger than the sum of its proper divisors (29678075).

148390345 is an equidigital number, since it uses as much as digits as its factorization.

148390345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29678074.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 148390345 is about 12181.5575769275. The cubic root of 148390345 is about 529.4218746520.

The spelling of 148390345 in words is "one hundred forty-eight million, three hundred ninety thousand, three hundred forty-five".