145648345 has 4 divisors (see below), whose sum is σ = 174778020. Its totient is φ = 116518672.

The previous prime is 145648343. The next prime is 145648361. The reversal of 145648345 is 543846541.

It is a happy number.

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 18139081 + 127509264 = 4259^2 + 11292^2 .

It is a cyclic number.

It is not a de Polignac number, because 145648345 - 2¹ = 145648343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145648298 and 145648307.

It is not an unprimeable number, because it can be changed into a prime (145648343) 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, 14564830 + ... + 14564839.

It is an arithmetic number, because the mean of its divisors is an integer number (43694505).

Almost surely, 2^145648345 is an apocalyptic number.

It is an amenable number.

145648345 is a deficient number, since it is larger than the sum of its proper divisors (29129675).

145648345 is an equidigital number, since it uses as much as digits as its factorization.

145648345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29129674.

The product of its digits is 230400, while the sum is 40.

The square root of 145648345 is about 12068.4856133651. The cubic root of 145648345 is about 526.1406431874.

The spelling of 145648345 in words is "one hundred forty-five million, six hundred forty-eight thousand, three hundred forty-five".