145843545 has 16 divisors (see below), whose sum is σ = 237753792. Its totient is φ = 76315200.

The previous prime is 145843543. The next prime is 145843549. The reversal of 145843545 is 545348541.

It is not a de Polignac number, because 145843545 - 2¹ = 145843543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145843541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90931 + ... + 92520.

It is an arithmetic number, because the mean of its divisors is an integer number (14859612).

Almost surely, 2^145843545 is an apocalyptic number.

145843545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145843545 is a deficient number, since it is larger than the sum of its proper divisors (91910247).

145843545 is a wasteful number, since it uses less digits than its factorization.

145843545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183512.

The product of its digits is 192000, while the sum is 39.

The square root of 145843545 is about 12076.5700842582. The cubic root of 145843545 is about 526.3755853387.

The spelling of 145843545 in words is "one hundred forty-five million, eight hundred forty-three thousand, five hundred forty-five".