145644543 has 24 divisors (see below), whose sum is σ = 235709136. Its totient is φ = 85881600.

The previous prime is 145644539. The next prime is 145644547. The reversal of 145644543 is 345446541.

145644543 is a `hidden beast` number, since 1 + 4 + 5 + 644 + 5 + 4 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (145644539) and next prime (145644547).

It is not a de Polignac number, because 145644543 - 2² = 145644539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145644498 and 145644507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145644547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16218 + ... + 23543.

It is an arithmetic number, because the mean of its divisors is an integer number (9821214).

Almost surely, 2^145644543 is an apocalyptic number.

145644543 is a deficient number, since it is larger than the sum of its proper divisors (90064593).

145644543 is a wasteful number, since it uses less digits than its factorization.

145644543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39815 (or 39812 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 145644543 is about 12068.3280946451. The cubic root of 145644543 is about 526.1360650278.

The spelling of 145644543 in words is "one hundred forty-five million, six hundred forty-four thousand, five hundred forty-three".