145563645 has 8 divisors (see below), whose sum is σ = 232901856. Its totient is φ = 77633936.

The previous prime is 145563641. The next prime is 145563647. The reversal of 145563645 is 546365541.

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

It is a cyclic number.

It is not a de Polignac number, because 145563645 - 2² = 145563641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145563641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4852107 + ... + 4852136.

It is an arithmetic number, because the mean of its divisors is an integer number (29112732).

Almost surely, 2^145563645 is an apocalyptic number.

145563645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145563645 is a deficient number, since it is larger than the sum of its proper divisors (87338211).

145563645 is an equidigital number, since it uses as much as digits as its factorization.

145563645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9704251.

The product of its digits is 216000, while the sum is 39.

The square root of 145563645 is about 12064.9759635069. The cubic root of 145563645 is about 526.0386332084.

The spelling of 145563645 in words is "one hundred forty-five million, five hundred sixty-three thousand, six hundred forty-five".