145821282 has 8 divisors (see below), whose sum is σ = 291642576. Its totient is φ = 48607092.

The previous prime is 145821253. The next prime is 145821283. The reversal of 145821282 is 282128541.

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

145821282 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (145821283) 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 3 ways as a sum of consecutive naturals, for example, 12151768 + ... + 12151779.

It is an arithmetic number, because the mean of its divisors is an integer number (36455322).

Almost surely, 2^145821282 is an apocalyptic number.

145821282 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145821282 is a wasteful number, since it uses less digits than its factorization.

145821282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24303552.

The product of its digits is 10240, while the sum is 33.

The square root of 145821282 is about 12075.6483055776. The cubic root of 145821282 is about 526.3488002520.

The spelling of 145821282 in words is "one hundred forty-five million, eight hundred twenty-one thousand, two hundred eighty-two".