145563873 has 32 divisors (see below), whose sum is σ = 242817792. Its totient is φ = 75513600.

The previous prime is 145563857. The next prime is 145563889. The reversal of 145563873 is 378365541.

It is an interprime number because it is at equal distance from previous prime (145563857) and next prime (145563889).

It is not a de Polignac number, because 145563873 - 2⁴ = 145563857 is a prime.

It is a super-2 number, since 2×145563873² = 42377682245520258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145563833) 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 31 ways as a sum of consecutive naturals, for example, 12283 + ... + 21023.

It is an arithmetic number, because the mean of its divisors is an integer number (7588056).

Almost surely, 2^145563873 is an apocalyptic number.

145563873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145563873 is a deficient number, since it is larger than the sum of its proper divisors (97253919).

145563873 is a wasteful number, since it uses less digits than its factorization.

145563873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8825.

The product of its digits is 302400, while the sum is 42.

The square root of 145563873 is about 12064.9854123410. The cubic root of 145563873 is about 526.0389078575.

The spelling of 145563873 in words is "one hundred forty-five million, five hundred sixty-three thousand, eight hundred seventy-three".