145243543 has 8 divisors (see below), whose sum is σ = 153009200. Its totient is φ = 137490048.

The previous prime is 145243541. The next prime is 145243547. The reversal of 145243543 is 345342541.

145243543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 145243543 - 2¹ = 145243541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145243541) 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, 31855 + ... + 36127.

It is an arithmetic number, because the mean of its divisors is an integer number (19126150).

Almost surely, 2^145243543 is an apocalyptic number.

145243543 is a deficient number, since it is larger than the sum of its proper divisors (7765657).

145243543 is a wasteful number, since it uses less digits than its factorization.

145243543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6081.

The product of its digits is 28800, while the sum is 31.

The square root of 145243543 is about 12051.7029087179. The cubic root of 145243543 is about 525.6527548081.

The spelling of 145243543 in words is "one hundred forty-five million, two hundred forty-three thousand, five hundred forty-three".