145563623 has 8 divisors (see below), whose sum is σ = 146470368. Its totient is φ = 144660384.

The previous prime is 145563611. The next prime is 145563641. The reversal of 145563623 is 326365541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145563623 is a prime.

It is a super-2 number, since 2×145563623² = 42377536681772258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145563023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147590 + ... + 148572.

It is an arithmetic number, because the mean of its divisors is an integer number (18308796).

Almost surely, 2^145563623 is an apocalyptic number.

145563623 is a deficient number, since it is larger than the sum of its proper divisors (906745).

145563623 is an equidigital number, since it uses as much as digits as its factorization.

145563623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753.

The product of its digits is 64800, while the sum is 35.

The square root of 145563623 is about 12064.9750517769. The cubic root of 145563623 is about 526.0386067072.

The spelling of 145563623 in words is "one hundred forty-five million, five hundred sixty-three thousand, six hundred twenty-three".