145543238 has 8 divisors (see below), whose sum is σ = 218377488. Its totient is φ = 72750744.

The previous prime is 145543207. The next prime is 145543271. The reversal of 145543238 is 832345541.

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

It is a junction number, because it is equal to n+sod(n) for n = 145543198 and 145543207.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 620 + ... + 17072.

It is an arithmetic number, because the mean of its divisors is an integer number (27297186).

Almost surely, 2^145543238 is an apocalyptic number.

145543238 is a deficient number, since it is larger than the sum of its proper divisors (72834250).

145543238 is a wasteful number, since it uses less digits than its factorization.

145543238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20878.

The product of its digits is 57600, while the sum is 35.

The square root of 145543238 is about 12064.1302214457. The cubic root of 145543238 is about 526.0140497531.

Adding to 145543238 its reverse (832345541), we get a palindrome (977888779).

The spelling of 145543238 in words is "one hundred forty-five million, five hundred forty-three thousand, two hundred thirty-eight".