145443555 has 48 divisors (see below), whose sum is σ = 265356000. Its totient is φ = 73586688.

The previous prime is 145443553. The next prime is 145443577. The reversal of 145443555 is 555344541.

145443555 is a `hidden beast` number, since 14 + 54 + 43 + 555 = 666.

145443555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145443555 - 2¹ = 145443553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145443553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76051 + ... + 77939.

It is an arithmetic number, because the mean of its divisors is an integer number (5528250).

Almost surely, 2^145443555 is an apocalyptic number.

145443555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145443555 is a deficient number, since it is larger than the sum of its proper divisors (119912445).

145443555 is a wasteful number, since it uses less digits than its factorization.

145443555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988 (or 1985 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 145443555 is about 12059.9981343282. The cubic root of 145443555 is about 525.8939327930.

The spelling of 145443555 in words is "one hundred forty-five million, four hundred forty-three thousand, five hundred fifty-five".