145566856 has 32 divisors (see below), whose sum is σ = 277107480. Its totient is φ = 71680000.

The previous prime is 145566823. The next prime is 145566859. The reversal of 145566856 is 658665541.

It can be written as a sum of positive squares in 4 ways, for example, as 119902500 + 25664356 = 10950^2 + 5066^2 .

It is not an unprimeable number, because it can be changed into a prime (145566859) 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 7 ways as a sum of consecutive naturals, for example, 207306 + ... + 208006.

Almost surely, 2^145566856 is an apocalyptic number.

It is an amenable number.

145566856 is a deficient number, since it is larger than the sum of its proper divisors (131540624).

145566856 is a wasteful number, since it uses less digits than its factorization.

145566856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065 (or 1061 counting only the distinct ones).

The product of its digits is 864000, while the sum is 46.

The square root of 145566856 is about 12065.1090339043. The cubic root of 145566856 is about 526.0425011560.

It can be divided in two parts, 14556 and 6856, that added together give a palindrome (21412).

The spelling of 145566856 in words is "one hundred forty-five million, five hundred sixty-six thousand, eight hundred fifty-six".