145549066 has 32 divisors (see below), whose sum is σ = 242117568. Its totient is φ = 65197440.

The previous prime is 145549043. The next prime is 145549081. The reversal of 145549066 is 660945541.

It is a happy number.

It is a super-3 number, since 3×145549066³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235590 + ... + 236206.

It is an arithmetic number, because the mean of its divisors is an integer number (7566174).

Almost surely, 2^145549066 is an apocalyptic number.

145549066 is a deficient number, since it is larger than the sum of its proper divisors (96568502).

145549066 is a wasteful number, since it uses less digits than its factorization.

145549066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 145549066 is about 12064.3717615133. The cubic root of 145549066 is about 526.0210707342.

The spelling of 145549066 in words is "one hundred forty-five million, five hundred forty-nine thousand, sixty-six".